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Fluffernutter Brownies Recipe

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  • Author: Kimberly
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 16 brownies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

Fluffernutter Brownies combine rich, fudgy chocolate brownies with creamy peanut butter and fluffy marshmallow swirls, creating a luscious dessert perfect for peanut butter and chocolate lovers. This recipe yields 16 decadent brownies with a gooey, gooey texture and a delightful marbleized top.


Ingredients

Brownie Batter

  • 1 cup unsalted butter
  • 1 cup granulated sugar
  • 1 cup brown sugar
  • 3 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup all-purpose flour
  • 1 cup unsweetened cocoa powder
  • 1/2 teaspoon salt

Swirl Toppings

  • 3/4 cup marshmallow fluff
  • 3/4 cup creamy peanut butter
  • 1/2 cup chocolate chips or chunks (optional)


Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper to ensure easy removal of the brownies.
  2. Melt Butter: Melt the butter in a saucepan or microwave-safe bowl then allow it to cool slightly to avoid scrambling the eggs in the next step.
  3. Mix Sugars: Whisk the granulated sugar and brown sugar into the melted butter until the mixture is smooth and well combined, ensuring even sweetness.
  4. Add Eggs and Vanilla: Beat in the eggs one at a time along with the vanilla extract until the batter becomes glossy and slightly thickened.
  5. Incorporate Dry Ingredients: Stir in the unsweetened cocoa powder, all-purpose flour, and salt just until combined, taking care not to overmix, which can cause tough brownies.
  6. Layer Batter: Pour half of the brownie batter evenly into the prepared pan, spreading it gently to corners.
  7. Add Swirls: Drop spoonfuls of creamy peanut butter and marshmallow fluff over the batter in scattered dollops.
  8. Swirl Mixture: Using a knife or skewer, swirl the peanut butter and marshmallow fluff gently into the batter to create a marbled effect.
  9. Add Remaining Batter: Pour the remaining brownie batter over the swirled layer, smoothing it out evenly.
  10. Repeat Swirl: Optionally drop additional peanut butter and marshmallow fluff dollops on top and swirl again for extra flavor and visual appeal.
  11. Bake: Bake in the preheated oven for 28–32 minutes, or until a toothpick inserted near the center comes out with a few moist crumbs but not wet batter.
  12. Cool and Serve: Allow the brownies to cool completely in the pan before slicing into 16 squares and serving to enjoy the perfect gooey texture.

Notes

  • Do not overmix the batter to keep brownies tender and fudgy.
  • If you prefer extra chocolaty brownies, fold in 1/2 cup chocolate chips into the batter before baking.
  • Line the baking pan with parchment paper with an overhang for easy removal of the entire brownie slab.
  • Make sure the melted butter is slightly cooled before adding eggs to prevent curdling.
  • Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.