Magic Custard Cake
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If you’ve never tried a vanilla bean Magic Custard Cake, you are in for a treat. This dessert transforms a simple batter into a 3-layer cake. An airy top, a soft and creamy custard middle, and a silky base that melts as you slice into it. Infused with vanilla beans, it’s an impressive bake with simple ingredients and a soft texture everyone will love.

A magic custard cake is one of those cakes that feels like a kitchen miracle! When you whisk together the eggs, sugar, milk, and butter, the batter will look thin and a little like a science experiment. But the magic happens in the oven as it bakes! The vanilla bean flavored cake settles into 3 layers: a soft golden sponge on top, a creamy custard middle, and a dense, almost pudding-like bottom. You will wonder how something so humble to start turns magically into a cake.
This vanilla bean magic custard cake is effortless in the best possible way. It has familiar ingredients and minimal prep time. Yet when you serve it, it looks like something fancy! The slices are light and luscious and perfect for weekends or when you want a special dessert without having to work too hard.
Ingredients

- Sugar – Baker’s sugar also known as caster sugar or superfine sugar is recommended.
- Eggs – Four large eggs are needed. You will separate them before incorporating them into the recipe.
- Vanilla – A full vanilla bean is infused into the sugar, while vanilla extract flavors the egg whites to give this magic custard cake the ultimate vanilla flavor.
- Butter – Unsalted butter is melted and slightly cooled before adding to the cake batter.
- Milk – I used 2% milk; you can use whole milk or 1%. The fat in the milk helps the custard be creamy, so some fat is recommended.
- Flour – All-purpose flour brings structure to the cake, especially the soft sponge layer.
In Photos: How To Make Vanilla Magic Cake
Step 1: Prep vanilla sugar
Start by cutting the vanilla bean in half lengthwise. Then use the knife to scrape out the seeds. Add the vanilla bean seeds to ¾ cup of the baker’s sugar, then use your clean hands to work the seeds into the sugar.
Step 2: Prepare egg whites
Beat the room-temperature egg whites, 2 tablespoons of baker’s sugar, and 1 teaspoon of vanilla with a hand mixer or stand mixer until stiff peaks form. Set aside.

Step 3: Make egg yolk mixture
Then beat the room temperature egg yolks with the vanilla sugar on medium speed for about 2 minutes, until light and pale in color.

Add the butter and beat for another minute until well blended.

Now add the flour and mix on low until the batter is smooth. The batter is quite thick at this point.

Slowly add the milk, using about ¼-½ cup at a time, until the batter is well mixed. It will be quite thin once all the milk has been added.

Step 4: Add egg white mixture
Gently whisk the egg whites into the batter in three additions. You don’t want to deflate the whites, and you will see some clumpy bits of egg whites floating at the top.

Step 5: Add to prepared pan
Pour the batter into the prepared pan and place it in the preheated oven.
Step 6: Bake
Bake for 40-65 minutes or until the top is golden brown and the cake just lightly jiggles when the side of the pan is gently shaken.
The bake time can vary depending on your oven. Check the cake at 40 minutes and if necessary, lightly tent with a piece of aluminum foil. Continue to check every 10 minutes until done. The top should have a golden hue, as pictured below.

Tips For The Best Magic Custard Cake
- Eggs separate better when they are cold. Separate the eggs and then allow them to come to room temperature.
- If you don’t have baker’s sugar – you can create it by blitzing granulated sugar in a food processor for 30-60 seconds. The sugar should feel softer, but still have a little grain to it.
- Lukewarm milk is between 95°-105°F. This is the ideal temperature for adding to the cake batter.
- Every oven is different, so you will have to watch the cake towards the end. Because of the soft and creamy custard layer, the typical toothpick test will not work on this cake. You want the edges to be set, the top to be golden and the cake to have a small jiggle to the middle, much like a cheesecake.

More Cake Recipes
- Cream Puff Cake
- Chocolate Chip Cake
- Perfect Vanilla Cake
- Basque Cheesecake
- Moist Pumpkin Layer Cake
- Lemon Chiffon Cake

Magic Custard Cake
Ingredients
- 4 eggs, separated, room temperature*
- 1 vanilla bean
- ¾ cup baker’s sugar + 2 tablespoons, divided 175g
- 1 teaspoon vanilla extract
- ½ cup unsalted butter, melted and slightly cooled 113g
- ¾ cup all-purpose flour 94g
- 2 cups 2% milk, lukewarm**
Instructions
- Preheat the oven to 325°F and line an 8×8 baking pan with parchment paper.
- Cut the vanilla bean in half lengthwise. Then use the knife to scrap out the seeds. Add the vanilla bean seeds to ¾ cup of the baker’s sugar and use your clean hands to work the vanilla seeds into the sugar. Set aside.
- Now beat the room temperature egg whites, 2 tablespoons of baker’s sugar and 1 teaspoon of vanilla with a hand mixer or stand mixer until stiff peaks. Set aside.
- Then beat the room temperature egg yolks with the vanilla sugar on medium speed for about 2 minutes, until light and pale in color.
- Add the melted butter and beat for another minute until well blended.
- Now add the flour and mix on low until the batter is smooth. The batter is very thick at this point.
- Slowly add the milk on low, using about ¼ – ½ cup at a time until the batter is well mixed. It will be quite thin once all the milk has been added.
- Gently whisk the egg whites into the batter in three additions. You don’t want to deflate the whites and will see some clumpy bits of egg whites floating at the top.
- Pour the batter into the prepared pan and place in the preheated oven.
- Bake for 40-65 minutes or until the top is golden brown and the cake just lightly jiggles when the side of the pan is gently shaken. The bake time can vary depending on your oven. Check the cake at 40 minutes and if necessary lightly tent with a piece of aluminum foil. Continue to check at 10 minute intervals until done.
- Allow to cool completely before removing from the pan. Top with powdered sugar before serving, if desired.




