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Fluffernutter Brownies Recipe

Fluffernutter Brownies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 19 reviews
  • Author: cozykitcheneats
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes
  • Yield: 9 brownies 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Indulge in the irresistible combination of chocolate, peanut butter, and marshmallow with these decadent Fluffernutter Brownies. Rich, fudgy, and swirled with creamy peanut butter and fluffy marshmallow, these brownies are a must-try for any dessert lover.


Ingredients

Units Scale

Brownie Batter:

  • 1/2 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/3 cup unsweetened cocoa powder
  • 1/2 cup all-purpose flour
  • 1/4 teaspoon salt
  • 1/4 teaspoon baking powder

Swirl:

  • 1/2 cup peanut butter
  • 1/2 cup marshmallow fluff

Instructions

  1. Preheat and Prepare: Preheat oven to 350°F. Line an 8×8-inch baking pan with parchment paper.
  2. Mix Wet Ingredients: Whisk melted butter and sugar until smooth. Add eggs and vanilla, whisk until combined.
  3. Add Dry Ingredients: Stir in cocoa powder, flour, salt, and baking powder until just mixed.
  4. Spread Batter: Pour batter into the prepared pan, spread evenly.
  5. Add Swirls: Warm peanut butter slightly, then drop spoonfuls of peanut butter and marshmallow fluff over the batter. Swirl gently with a knife or skewer.
  6. Bake: Bake for 25–30 minutes until a toothpick comes out with a few moist crumbs.
  7. Cool and Serve: Cool completely before cutting into squares.

Notes

  • For extra richness, add 1/2 cup chocolate chips.
  • Swirling carefully helps create beautiful marbled tops.
  • Store in an airtight container at room temperature for up to 3 days.

Nutrition

  • Serving Size: 1 brownie
  • Calories: 270
  • Sugar: 22g
  • Sodium: 140mg
  • Fat: 15g
  • Saturated Fat: 6g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 50mg