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Decadent Chocolate Peanut Butter Brownies with Fudge Frosting Recipe

4.7 from 63 reviews

These Decadent Chocolate Peanut Butter Brownies with Fudge Frosting combine rich peanut butter flavor with deep chocolate notes topped with a smooth, creamy fudge frosting. Easy to prepare and perfect for sharing, these 16 servings deliver a fudgy, moist texture with bursts of chocolate chips throughout.

Ingredients

Scale

Brownie Base

  • 1 cup peanut butter
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour
  • 1/2 cup cocoa powder
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/2 cup chocolate chips

Fudge Frosting

  • 1 cup chocolate chips
  • 1 tablespoon butter
  • 1/2 cup heavy cream

Instructions

  1. Preheat: Preheat your oven to 350°F (175°C) and grease a 9×9 inch baking pan thoroughly to prevent sticking.
  2. Combine Peanut Butter and Sugar: In a mixing bowl, blend the peanut butter and granulated sugar together until the mixture is smooth and well incorporated.
  3. Add Eggs and Vanilla: Beat in the eggs one at a time, ensuring each is fully mixed before adding the next. Stir in the vanilla extract to infuse flavor.
  4. Sift Dry Ingredients: In a separate bowl, sift together the all-purpose flour, cocoa powder, baking powder, and salt to eliminate lumps and combine evenly.
  5. Mix Batter: Gradually fold the dry ingredients into the peanut butter mixture carefully until just combined to avoid overmixing. Then gently fold in the chocolate chips for texture.
  6. Bake: Pour the batter evenly into the prepared baking pan. Bake in the preheated oven for 20 to 25 minutes until a toothpick inserted near the center comes out with a few moist crumbs.
  7. Make Fudge Frosting: While the brownies bake, melt the chocolate chips and butter together, either over a double boiler or in short intervals in the microwave. Stir in the heavy cream until the frosting is smooth and glossy.
  8. Frost and Set: Once the brownies have cooled completely, spread the fudge frosting evenly on top. Allow the frosting to set before cutting the brownies into 16 squares to serve.

Notes

  • Do not overbake the brownies to maintain their fudgy texture.
  • Use natural peanut butter for best flavor, avoiding varieties with added sugar or oils.
  • Let brownies cool completely before frosting to prevent melting the frosting.
  • Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.
  • For a nut-free option, substitute peanut butter with sunflower seed butter.

Keywords: Chocolate Peanut Butter Brownies, Fudge Frosting, peanut butter dessert, fudgy brownies, chocolate chips brownies