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Fluffernutter cookies stacked on a white plate with cups of coffee in the background.
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Fluffernutter Cookies

Fluffernutter Cookies: How fun! Soft peanut butter cookies sandwiched around a gooey marshmallow filling. Naturally gluten-free & dairy-free.
Prep Time25 minutes
Cook Time20 minutes
Cooling Time:30 minutes
Total Time1 hour 15 minutes
Course: Dessert, Snack
Cuisine: American
Keyword: fluffernutter cookies, peanut butter fluffernutter cookies, peanut butter marshmallow cookies
Servings: 18 sandwich cookies
Calories: 332kcal

Ingredients

For the Peanut Butter Cookies:

For the Marshmallow Filling:

Instructions

To Make the Peanut Butter Cookies:

  • Preheat the oven to 350 degrees F and line baking sheets with parchment paper.
  • Place the peanut butter, sugar, baking soda, salt, and eggs in a large mixing bowl and stir together until combined.
  • Scoop 1 1/2 tablespoon-sized balls of dough on to the prepared baking sheets.
  • Press the balls down with the tines of a fork.
  • Bake for 9 to 12 minutes, or until set around the edges but still soft in the middle.
  • Allow to cool on the baking sheet for 10 minutes (cookies will be very tender while warm).
  • Sandwich with marshmallow filling & serve.

To Make the Marshmallow Filling:

  • Place the egg whites, cream of tartar, and salt in a large mixing bowl and whip on medium speed until foamy.
  • While continuing to whip, add 1 cup of the sugar in a very slow and steady stream (about 1 teaspoon at a time).
  • Once the entire cup of sugar has been added, continue to whip until the meringue can hold stiff peaks.
  • Whip in the vanilla extract, and continue to stir the meringue on low speed while you prepare the hot sugar syrup.
  • Place the remaining 1 cup of sugar in a small pot, along with the water.
  • Place the pot over medium heat and cook until the syrup boils and reaches 235 degrees F.
  • In a very slow and steady stream, add the hot sugar syrup to the meringue, while continuing to whip on low speed.
  • When all the syrup has been added, turn the mixer up to high speed and whip until very stiff and glossy.

Video

Notes

*A few drops of lemon juice or white vinegar may be substituted. 

Nutrition

Serving: 1sandwich cookie | Calories: 332kcal | Carbohydrates: 45g | Protein: 9g | Fat: 15g | Saturated Fat: 3g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 18mg | Sodium: 420mg | Potassium: 222mg | Fiber: 2g | Sugar: 42g | Vitamin A: 26IU | Calcium: 16mg | Iron: 1mg