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Double Frosted Peanut Butter Brownies

Double Frosted Peanut Butter Brownies consist of a fudgy peanut butter brownies topped with peanut butter frosting AND chocolate frosting. Double the frosting is always better. These brownies are chocolate and peanut butter heaven.
Course Dessert
Prep Time 30 minutes
Servings 16
Author Christin Mahrlig



  • 1 cup butter
  • 4 ounces unsweetened chocolate, coarsely chopped
  • 1 2/3 cups granulated sugar
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1/4 teaspoon salt
  • 1 cup peanut butter chips

Peanut Butter Frosting

  • 1 1/2 cups confectioners' sugar
  • 1/2 cup creamy peanut butter
  • 3-4 tablespoons milk

Chocolate Frosting

  • 1/4 cup butter, softened
  • 1/4 cup unsweetened cocoa powder
  • 1/4 cup milk
  • 3 cups confectioners' sugar
  • 1 teaspoon vanilla extract


  • Preheat oven to 350 degrees F. Line an 8-inch square baking dish with aluminum foil so that it overhangs the sides.
  • In a heavy-bottomed pot, melt the butter and chocolate over low heat, stirring until smooth. Transfer mixture to a large bowl and let cool 5 minutes.
  • Whisk sugar into chocolate mixture and then eggs and vanilla.
  • Stir in flour and salt and then peanut butter chips.
  • Pour batter into prepared pan. Bake 36 to 40 minutes. Cool completely.
  • Lift brownies out of pan using foil and peel foil away from brownies.
  • Make peanut butter frosting. Using a handheld electric mixer, beat confectioners' sugar, peanut butter, and 2 tablespoons of milk until smooth. Add up to 2 more tablespoons of milk to get to spreading consistency.
  • Spread on top of brownies. At this point, I like to cover the brownies loosely with plastic wrap and refrigerate for about 20 to 30 minutes to firn up the peanut butter layer.
  • Make chocolate frosting. Use a handheld electric mixer to beat all ingredinets together.a Spread on top of peanut butter layer.


Note; You can simplify this recipe by using a can of chocolate frosting for the top frosting.