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4.67 from 3 votes

Fluffernutter Brownies

Fluffernutter Brownies are creamy peanut butter and marshmallow fluff sandwiched and baked between two layers of fudgy brownies.
Prep Time20 minutes
Cook Time28 minutes
Total Time48 minutes
Course: Dessert, Snack
Keyword: Fluffernutter Brownies
Servings: 12 brownies
Calories: 563kcal
Author: Amanda Rettke--iambaker.net

Ingredients

  • 1 ⅓ cups (167.3 g) regular unsweetened cocoa powder
  • 1 cup (125 g) all-purpose flour
  • 1 teaspoon baking powder
  • ½ teaspoon kosher salt
  • 1 teaspoon espresso powder
  • 1 cup (2 sticks / 227 g) unsalted butter, room temperature
  • 2 cups (400 g) granulated sugar
  • 1 cup (168 g) semi-sweet chocolate chips
  • 1 tablespoon vanilla extract
  • 4 large eggs, room temperature
  • ¾ cup (193.5 g) creamy peanut butter
  • 1 cup (96 g) marshmallow fluff

Instructions

  • Preheat the oven to 350°F. Line a 9x13-inch ceramic baking dish with parchment paper.
  • To a large bowl, add cocoa powder, flour, baking powder, salt, and espresso powder. Whisk to combine and set aside.
  • In a large saucepan over medium heat, add butter and sugar. After the butter has melted, heat to a low boil and cook for 2 more minutes, or until it reaches 230°F on an instant-read thermometer, stirring occasionally.
  • Remove from heat and stir in the chocolate chips and vanilla until completely melted. (The mixture might still be grainy.) Allow it to cool for about 10 minutes.
  • Add eggs, one at a time, stirring constantly until smooth.
  • Add the dry ingredients to the chocolate mixture and mix until just combined. The batter will be thick.

Assembly

  • Spread half of the batter into the lined baking dish.
  • Spread the peanut butter over the batter. Then, using a piping bag or a plastic bag with the corner cut off, pipe the marshmallow fluff on top of the peanut butter.
  • Top with the remaining brownie batter.
  • Bake for 28-30 minutes.
  • Allow the brownies to cool completely before cutting and serving.

Video

Nutrition

Serving: 1brownie | Calories: 563kcal