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A square of Peanut Butter Brownies showing the chocolate and peanut butter marbled top.
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Peanut Butter Brownies

Prep Time20 minutes
Cook Time30 minutes
Total Time50 minutes
Servings: 16 servings
Calories: 280kcal

Ingredients

  • 1/2 cup unsalted butter, melted
  • 1 cup granulated sugar
  • 2 large egg s
  • 1 teaspoon vanilla extract
  • 1/3 cup unsweetened cocoa powder
  • 1/2 cup all -purpose flour
  • 1/4 teaspoon sal t
  • 1/4 teaspoon baking powder
  • 1/2 cup creamy peanut butter
  • 1/4 cup powdered sugar
  • 2 tablespoons unsalted butter, melted

Instructions

  • Preheat oven to 350°F (175°C) and grease an 8x8 inch baking pan.
  • In a medium bowl, whisk 1/2 cup melted butter and granulated sugar until well combined.
  • Beat in the eggs and vanilla extract until the mixture is smooth.
  • Gently fold in cocoa powder, all-purpose flour, salt, and baking powder until no dry streaks remain.
  • In a separate small bowl, stir together creamy peanut butter, powdered sugar, and 2 tablespoons melted butter until smooth.
  • Spread the chocolate batter evenly into the prepared baking pan.
  • Dollop the peanut butter mixture over the chocolate batter and use a knife to create a marble swirl pattern.
  • Bake for 25 to 30 minutes until a toothpick inserted into the center comes out with a few moist crumbs.
  • Remove from oven and allow to cool completely in the pan before slicing into 16 squares.