Chocolate Swiss Meringue Buttercream

Simply perfect chocolate Swiss meringue buttercream: So light and silky-smooth, with a deep chocolate flavor and a hint of sweetness. This will be your new favorite frosting!

Simply Perfect Chocolate Buttercream

Swiss meringue buttercream takes a little more effort than the powdered sugar + butter American variety, but it's doable, even for a beginner, and the flavor payoff makes it all worthwhile!  

If you've never tasted it before, you won't believe it!  Every time one of my friends or family tastes it for the first time, they're always like, "What is this???"

Once you give it a try, you'll never want to go back to American buttercream!

Why this is the best chocolate Swiss meringue buttercream recipe

  • Texture: It has the most incredible silky-smooth mouthfeel.
  • Not overly sweet: The meringue helps balance the chocolate's sweetness.
  • Versatile: Use it for various desserts, including layer cakes, and cupcakes, and even as a filling for macarons.
  • Firm: It holds its shape well, making it an excellent choice for decorating cakes with intricate designs or smooth finishes.
  • Stable: It pipes beautifully and is stable enough to withstand warm temperatures.

Ingredients and notes

Egg whites: Use the whites only from large eggs. It's best if they're at room temperature, but I don't find this to be too critical. Be careful not to pierce the yolk when separating the eggs. If you do, the meringue won't whip up properly.

Sugar: Granulated white sugar combines with the egg whites to create an airy meringue.

Butter: I use unsalted butter because it lets me control the amount of salt in the dish.  Different brands of butter can contain different amounts of salt, so this way you get a more consistent result.  This recipe works best if you allow the butter to come to room temperature first.  You can set it out on the counter a few hours ahead of making your recipe, or you can microwave it for 10 seconds, turn it over, and microwave it again for another 8 seconds. Make sure that the butter is at room temperature, but not warm or melted.

Chocolate: Use high-quality chocolate that has been melted and cooled. Baking bars that have been chopped or broken into small pieces will melt the smoothest. You can use semi-sweet, bittersweet, white chocolate, or milk chocolate depending on your preference.

Vanilla: Vanilla extract adds a subtly sweet flavor without being at all sugary.

Salt: Carries the flavors and intensifies them.  The end result won't taste salty, but it will make everything so much more flavorful!  I like kosher salt best because it doesn't have any additives (table salt usually contains iodine which can leave a bitter taste), so the flavor is pure.  It's also inexpensive and easy to find in a regular grocery store.

Variations

White chocolate Swiss meringue buttercream: Use melted white chocolate to create a white chocolate Swiss buttercream.

Mocha Swiss meringue buttercream: Add a tablespoon or two of instant espresso or coffee powder to the melted chocolate before incorporating it into the buttercream.

Raspberry or strawberry chocolate Swiss meringue buttercream: Mix in one to two tablespoons of seedless raspberry or strawberry jam to the finished buttercream to add a fruity twist that complements the chocolate.

Peppermint chocolate Swiss meringue buttercream: Add peppermint extract to the buttercream for a festive and refreshing flavor, perfect for holiday treats.

Tools and equipment

How to make chocolate Swiss meringue buttercream

This recipe comes together in just 4 simple steps.

Step 1: Cook the eggs and sugar

Place the egg whites and sugar in a large metal or glass mixing bowl and set the bowl over a pot of simmering water.

Simply Perfect Chocolate Swiss Meringue Buttercream

Allow the mixture to cook, whisking, until the sugar has completely dissolved and the mixture looks opaque.

Step 2: Whip

Remove the sugar mixture from the heat and whip it on high speed using the whisk attachment (not the paddle attachment) until completely cooled and stiff peaks form.

Simply Perfect Chocolate Swiss Meringue Buttercream

Step 3: Add butter

With the mixer going at medium speed, whip in a tablespoon of butter at a time, allowing each addition to become fully incorporated before adding the next.

Simply Perfect Chocolate Swiss Meringue Buttercream

If it looks curdled, continue to whip until it comes back together before adding the remaining butter.

Step 4: Add flavorings

Scrape the bottom and sides of the bowl with a silicone spatula, then fold in the melted dark chocolate, vanilla, and salt.

Simply Perfect Chocolate Swiss Meringue Buttercream

Expert tips For making Swiss meringue buttercream

  • The hardest part is warming the eggs and sugar together to create the meringue base.  I do it right in the bowl of a stand mixer over a pot of simmering water.  Be sure the egg yolks are separated from the whites. You don't want to use a heatproof bowl; you need the bowl to warm up enough to melt the sugar.
  • Continue to whisk over the simmering water if the egg whites and sugar still feel gritty.
  • Once you place the egg whites and sugar on your stand mixer, whip it on medium-high speed until it's completely cool and air bubbles form.  It will look (and taste!) a lot like marshmallow. If you don't have a stand mixer an electric mixer will also work.
  • When there is no hint of warmth, start whipping in the softened butter a tablespoon at a time.
  • If it starts to look curdled, don't panic. Just whip, whip, whip, and it'll come back together.
  • Melt the chocolate in the microwave, stirring after each 20-second interval, until it's completely smooth and velvety. Allow it to cool a bit before folding it into the meringue.

FAQS

What are common mistakes that people make when making Swiss meringue buttercream?


Mistake #1: Not entirely dissolving the sugar in the egg whites over the double boiler. If this happens, the buttercream can have a grainy texture.

Mistake #2: Not cooling the meringue completely before adding butter. Adding butter to warm meringue can lead to a runny buttercream.

Mistake #3: The butter is too cold or too soft. Adding butter that is too cold or too soft can affect the texture of the buttercream.

Mistake #4: Underwhipping. Underwhipping can result in a loose and unstable buttercream.

Mistake #5: Adding warm chocolate. Adding warm chocolate to the buttercream can cause it to melt, resulting in a runny texture.

Does Swiss meringue buttercream firm up?

Yes, Swiss meringue buttercream does firm up, but its texture is influenced by temperature.

At room temperature, Swiss meringue buttercream has a smooth and creamy consistency.

If you refrigerate the buttercream, it becomes more solid, similar to butter, due to the high butter content. The firmness can make it easier to handle when working on intricate cake decorations.

Serving suggestions

This buttercream is great on just about any cake or cupcake.  

Frosting for layer cakes: Provides a smooth and luxurious coating that complements a variety of cake flavors.

Cupcake frosting: I especially love it on a vanilla cupcake, but chocolate cupcakes are perfect, too. It works great as a filling for cupcake centers.

Macaron filling: Sandwich macarons with Swiss meringue buttercream for a delicious and sophisticated twist.

Filling for pastries: Use as a filling for your favorite pastries, such as cream puffs, éclairs, or turnovers. It adds a luscious and sweet element to the pastry.

Storage

Room temperature: If you have frosted a cake or cupcakes with chocolate Swiss meringue buttercream, they can be kept at room temperature for about 1 to 2 days, depending on the ambient temperature. However, Swiss meringue buttercream is sensitive to heat, so avoid leaving it in a warm environment for too long.

Refrigerated: Store it in an airtight container in the refrigerator. It should last for 1 to 2 weeks. Before using it again, allow the buttercream to come to room temperature, and then re-whip it to restore its smooth texture.

Freeze: Place it in an airtight container or a zip-top bag, ensuring that it is well-sealed to prevent freezer burn. It can be stored in the freezer for 2 to 3 months. When ready to use, thaw it in the refrigerator overnight and then allow it to come to room temperature before re-whipping.

Simply Perfect Chocolate Swiss Meringue Buttercream

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Simply Perfect Chocolate Buttercream
4.23 stars (86 ratings)

Simply Perfect Chocolate Swiss Meringue Buttercream

Chocolate Swiss Meringue Buttercream: so light & silky-smooth, with a deep chocolate flavor & a hint of sweetness. This will be your new favorite frosting!
Servings: 24 servings
Prep Time: 15 minutes
Cook Time: 5 minutes
Total Time: 20 minutes

Ingredients

Instructions
 

  • Place the egg whites and sugar in a large metal or glass bowl.
  • Set the bowl over a pot of simmering water, and whisk continuously until the sugar has completely dissolved and the mixture looks opaque.
  • Remove the bowl from the heat, and whip on high speed until completely cooled.
  • Whip in the butter, a tablespoon at a time, until thick and fluffy. (If it begins to look curdled, continue to whip until it comes back together before adding in remaining butter.)
  • Fold in the melted chocolate, vanilla, and salt.

Notes

If the egg whites and/or the butter are slightly too warm, the buttercream may be runny. This can be easily remedied by placing it in the refrigerator for 20-30 minutes, then whipping again.


*Enough to ice (2) 9-inch diameter cakes, (1) 9 x 13-inch sheet cake, or 2 dozen cupcakes

Calories: 129kcal, Carbohydrates: 10g, Fat: 9g, Saturated Fat: 5g, Cholesterol: 20mg, Sodium: 19mg, Potassium: 35mg, Sugar: 10g, Vitamin A: 240IU, Calcium: 5mg, Iron: 0.3mg
Cuisine: American
Course: Dessert
Tried this recipe?Mention @bakingamoment on Instagram or tag #bakingamoment.

Author

  • Allie is the creator and owner of Baking a Moment. She has been developing, photographing, videographing, and writing and sharing recipes here since 2012.

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4.23 from 86 votes (68 ratings without comment)

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275 Comments

  1. I am using this frosting for an angel food cake. Will one batch be enough or should I double or 1 1/2 the recipe? Thanks 🙂

    1. Hi Meghan! Sorry I can't really answer your question without knowing what size cake you're making. However, as stated in the recipe card, you should have enough buttercream to ice (2) 9-inch diameter cakes, (1) 9 x 13-inch sheet cake, or 2 dozen cupcakes. Good luck, and thanks for reading!

  2. Hello!

    I am definitely trying this recipe this weekend! May I check with you, the butter as stated on your post 2sticks (1 cup), may I know what's the exact weight if I were to convert it in grams?

    And also, is this frosting bake to withstand humid weather? I am residing in Singapore you see. It's mostly sunshine and humid most of the time.

      1. Hi Allie!

        This buttercream really lives up to its name! It was perfect!

        I still have a bit of leftover of the buttercream. May I know if the buttercream can be refrigerated? And for how long?

      2. Hi Nora! I'm so glad you were happy with it!

        I do keep mine in the fridge sometimes. You'll probably just have to fluff it up with the mixer again before you use it. I'd say probably no longer than a week, because eggs.

        Thanks so much for reading and for trying one of my recipes! 😀

  3. Hi,

    I'm after some baking tip. How do I get my cupcakes to rise straight up like yours instead of flaring out at the top?

    1. Hi Lily! That flare usually happens when you overfill the wells. Try filling only about halfway and see if that helps. Thanks for the great question!

  4. I'VE BEEN MAKING SIMPLE BUTTERCREAM FROSTING FOR YEARS BUT I REALLY DON'T THINK I CAN GO BACK! THIS FROSTING REMINDS ME OF FRESH MARSHMALLOWS OR SOMETHING. PERFECT WITH THE CHOCOLATE CUPCAKES <3

    1. Brittany, I totally hear you! I felt the same way the first time I tried Swiss Meringue Buttercream. No going back! It's definitely more effort, but the payoff is so worth it! I'm so happy you liked, thanks for the great feedback 😀 😀 😀

  5. Hello! I have been dying to get Swiss Meringue Frosting down pat. I am curious as to your thoughts on using unprocessed cocoa powder instead of melted chocolate. I always have powder on hand but not chocolate bars for baking. Not sure how each affects recipes results, any ideas??

    1. Hi Elizabeth! What a great question... I'm a big fan of cocoa powder for its robust flavor and also because it makes for fewer dirty dishes than chopping and melting chocolate! I've never tried it in my SMB, though... if you do please let me know how it comes out!

      1. I did use the requested amount of chocolate and used cocoa powder. My co-workers LOVED it. They all said it was the best frosting ever. I am not a fan at all of traditional buttercream, can never get it to where I don't taste the butter and no matter how little PS I use its too sweet. This will replace any request for buttercream. I will be using it on half of my order today 🙂 Four Dozen to make better get started. Thank you for this fantastic and easy recipe.

      2. Oh, yay! I'm so happy to hear you were pleased with the buttercream, Elizabeth. I feel the same way about buttercreams in general, and this one in particular. Thanks so much for trying one of my favorite recipes, and for the great feedback. Good luck with your order!

  6. hi allie..i just love ur blog and ur recipes and photos area so cool!!! can i use normal yogurt instead of greek yogurt...kinda hard to find it here where i live.thanks so much

    1. Hi Rafidah! Thank you so much for reading my blog and for the kind words! For which recipe are you wanting to sub in regular yogurt? Just double checking because the post you commented on does not call for yogurt. I'm thinking it's probably one of the cupcake recipes you're referring to, and if that's right I would say go for it! Just be sure that it's unsweetened yogurt, and bear in mind that the batter will be a little runnier because of the increased water content. Good luck and happy baking!

  7. Hiii I just made your simply perfect chocolate cupcakes and they definitely live up to their name !! Im about to make this recipe and I was wondering is there a specific speed I should keep my stand mix on? Is there a chance of over beating the egg whites ?

    1. Hi Nasra! I don't think you have to worry about overbeating the whites. In fact, the more you beat them, the better! I usually do it on high speed, and you want the whites to be stiff enough to hold firm peaks. Good luck and thanks for reading!

      1. Hello I maaade it and it came out absolutely perfect !!!!! Ive made and failed making many buttercreams but this one came out amazing! Thank Youu!What you're doing is so admirable and I will now trust all the recipes you post 🙂

      2. Yay!!! I'm so happy it worked so well for you! You've just put a huuuuuuuge grin on my face! I hope you enjoy eating the cupcakes and buttercream... these are two of my favorite recipes on the whole site. Thanks so much for reading and for the awesome feedback, Nasra!

    1. Hi Papillon! I've done mocha buttercream many times and it's one of my all-time favorites! I typically use the instant espresso granules, dissolved in just a tablespoon or so of water. The espresso granules are a little harder to find~ I believe the brand I've used is called Medaglio D'Oro? Good luck and thanks for reading!

      1. It's really up to your tastes, but I'd probably dissolve a tablespoon of espresso granules in a little bowl with one or two tablespoons of water (whatever it takes to get a thin paste), and then add a little of that at a time to your buttercream, until you get the taste you're after. It's hard for me to say exactly, because some people prefer a strong coffee flavor, and some like the chocolate to be the focus. It's up to you, really, you can add as little or as much as you'd like, it shouldn't have much impact on the texture of the buttercream really. Good luck, and let us know how you make out with it, ok?

  8. Hi Allie,

    I just tried your Chocolate Swiss Meringue Buttercream. It turned out VERY soft, (like whipped cream soft) even after refrigerating for an additional 30 minutes and whipping the sugar/butter/egg mixture, once back to room temperature it was still super soft. I have never had a European Buttercream before, is this normal? I will say I have never tasted a frosting as delicious as this. Even if I can never get it to thicken up it it has a great flavor. As is, it will be great on cupcakes, I was just hoping for something a bit more pipe-able.

    Thanks for a great recipe!
    Rob

    1. Hey Rob! Thanks so much for reading my blog and trying one of my favorite recipes. I'm not sure what the problem could be, but it definitely doesn't sound quite right. One of the reasons I love this frosting so much is because of how stable and pipeable it is. I do sometimes have to throw the meringue in the fridge for a few minutes (10 or 15?), but it always stiffens right up. It should not take 30 minutes. As you can see from my photos, I piped it on the cupcakes and it held its shape really well. I even left those cupcakes in a hot car for over an hour and it still held up! Did you use fresh eggs or egg whites from a carton? I tried it with pasteurized egg whites once and did not have a good result. Other than that I really can't imagine what the problem could be...???

      1. Thanks for the reply. The were eggs from a friend with chickens actually. They were in my fridge for about a week. I suppose they could have been older since I don't know when the friend collected them but they were full (no large air pocket) and smelled nice and fresh when I used them. They were a bit small but I had about 8 whites from the cake I made so I measured out 3 oz of whites instead of counting eggs. The resources I found online suggested a "standard" egg white was about an ounce. I may just have to try again and see if the results are different. Still the friend who got the end result loved the cake, it was probably the best tasting cake I've made thanks to the combination of non-boxed cake and your tasty frosting.

      2. Well I'm so glad to hear that the cake and frosting were so tasty. I wish I had a better answer for you as to why the buttercream was runny. It sounds like your eggs were fresh enough, for sure. The only reason I had asked about that was because the one time I tried making it with pasteurized whites from a carton, it never came together and I had to throw it out. I suppose I should really weigh my whites and include that in the recipe. Perhaps it's something to do with that. I can tell you, for now, that I always buy the eggs that are labeled "large," not extra-large or jumbo. I hope you have better luck next time, Rob, and thanks for reading my blog 🙂

  9. Hi! It's really frustrating to look @ all ds beautiful pictures, even the step-by-step guide & not be able to reproduce them. I've checked as many sites as I possibly can on smbc & somehow, each time I make mine, d butter separates, I think that's what you call curdle. What am I doing wrong?

    1. Tity, it almost always separates on me too. It's not you, trust me. It separates, and then you just have to keep beating and beating. High speed. It will come back together. Stop adding more butter until it does. When it gets smooth again, then you can begin adding more.

      Make sure that your meringue has NO HINT of warmth left. The butter should be a little soft but not warm. A lot of times, I put the mixing bowl with the meringue in it, in the fridge for 10 minutes or so before I start beating in the butter.

      Take a read through the other comments on this post. You will see more tips there. Also if you click over to the vanilla version (the link is within the post).

      It's a little more advanced technique and lots of bakers have trouble with it at first, so you are not alone. Don't give up! You'll get it. Good luck dear.

  10. Thankyou so much for your reply hope you are feeling better? X

    Can I ask what weight a cup or stick of butter is please in grams?

  11. Hello I am going to make this this week to fill and ice a 9" round, should I just halve the recipe? Also, can this be made in advance and kept in the fridge? X

    1. Hi Lynne! I'm so sorry for the delayed reply. I had surgery on Friday so I've been laid up for the last few days. 🙁 I think you can probably halve the recipe, that is, if the cake will be just one layer. If you are doing a double layer cake then make a full recipe for sure. It keeps in the fridge but you'll want to bring it to room temp before attempting to ice the cake, and you may even want to fluff it up with the mixer too. Good luck and I hope you get this in time for your cake! xx

  12. Amazing blog, you are doing such a good job! 🙂
    I have a question: when adding the melted chocolate, even if it is chilled, the buttercream won't melt a little bit? It would be a good idea to beat the buttercream again, or I must incorporate the chocolate only by hand, using a spatula?
    Please give me an answer because I have a cake to make and I count on your answer! 🙂

    1. Thank you so much, Alexandra! That is so nice to hear 🙂

      I like to let the chocolate cool a little bit, before adding it to the buttercream. But not too much, or you'll end up with little blobs of hardened chocolate in your frosting (I've actually done this :/). It should be a little warm but not hot. Surprisingly, it really doesn't melt the buttercream. I'm not sure why??? Perhaps because the meringue has somehow stabilized all that butter?

      You can beat the chocolate in with the mixer, or just fold it by hand. It's up to you! I've done it both ways and have just come to prefer folding it by hand, but it's really a matter of personal preference.

      Thanks so much for reading and for your kind words. Good luck with your cake! 😀

      1. Thank you so much for your answer.
        I am about to add the chocolate to my buttercream and I will let you know my results.
        Have a nice day! 🙂

  13. Good thing I figured out when to put in vanilla, although I used Almond instead because you never finished the recipe.

  14. Hi Allie,

    This frosting looks wicked! How many cupcakes can I frost with a swirl like this? Is it enough for 1 or 2 9-inch cakes? Also how do I store excess buttercream? Thank you 😉

    1. Ops just saw frosting is enough for how many cupcakes. How do I store excess buttercream and for how long? Do I have to rewhip before next usage? Thanks.

      1. No worries, Kris! I already replied under the previous thread. Thanks again for reaching out!

    2. Hi Kris! So happy you're going to try this frosting! I think you are going to LOVE IT! Check out the "yield" on the recipe card, I believe it's 2 dozen cupcakes or a 9" layer cake. I used a Wilton 1M tip for piping. As for what to do with the leftovers, that's an excellent question! If there's anything left over, it can be stored in the fridge or freezer for probably a week or so. When you're ready to use it, you'll want to take it out and let it come to room temperature, and then whip it up in the mixer again. It tends to get stiff as it sits, so it really helps if you whip it again to get it fluffed and airy. Good luck and thanks again for the great question!

      1. Hi Allie, if I pipe these buttercream on cupcakes, how long can they sit out in room temp? Thanks 🙂

      2. Hi Kris! This frosting is super stable. I left my cupcakes in a hot car for an hour or so this summer, and they didn't lose their shape at all! As far as spoilage, I'd probably pop them in the fridge after a couple of days. The frosting's probably ok, but the cake might get dry. Good luck, and thanks for reaching out! 🙂

      3. Thanks Allie. Another question. If I want to pipe rosettes at the sides of the cake, ombré style, do u think it is stiff enough to stick onto the cake? Cos some buttercream are too soft to be piped on the sides. Tnx 😉

      4. It's definitely stiff enough, but you may want to give the cake a thin crumb coat, just to give the rosettes something to stick to, if that makes sense...? Good luck, rosette cakes are so in right now! 😉

      5. Hi Allie, sorry to bug u again. Perhaps u missed my previous query on whether this smbc is suitable for piping rosettes on the sides of cakes?