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Stack of gluten-free peanut butter brownies.

Gluten-Free Peanut Butter Swirl Brownies

Gluten-free peanut butter swirl brownies are so easy to make. This recipe, which is loaded with peanut butter, makes the best dessert for any peanut butter cup lovers in your life.

Servings 12 brownies


  • 3/4 cup gluten-free flour
  • 1/2 cup unsweetened cocoa powder, natural or Dutch process
  • 1/4 teaspoon salt
  • 2 sticks butter, melted and cooled slightly
  • 1 cup granulated sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract

For the Peanut Butter Swirl

  • 3/4 cup peanut butter
  • 1/3 cup granulated sugar
  • 1 large egg


  1. Preheat oven to 350 degrees F. Line an 8x8x2-inch pan with foil. Lightly grease the foil with nonstick cooking spray. 

  2. Whisk together gluten-free flour blend, cocoa powder, and salt in a medium mixing bowl. Add the melted butter, sugar, eggs, and vanilla extract. Whisk until smooth. Batter will be thick. 

  3. In another bowl, combine the peanut butter, granulated sugar, and egg. Mixture will be thick. 

  4. Spread about half of the chocolate batter evenly into the pan. Drop large spoonfuls of peanut butter all over the chocolate batter. Using a knife, swirl the peanut butter batter into the chocolate batter. Drop the remaining chocolate batter on top. Swirl lightly with a knife. 

  5. Bake until set, about 30 minutes. Allow brownies to cool in the pan and then cut into squares.