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Peanut Butter Swirl Brownies with Peanut Butter Cups

Peanut Butter Swirl Brownies with Peanut Butter Cups

Fudgy cocoa brownies swirled with sweet peanut butter filling and topped with chopped peanut butter cups.
Prep Time 1 hour 15 minutes
Cook Time 35 minutes
Total Time 1 hour 50 minutes
Course Dessert
Cuisine American
Servings 16 squares
Calories 435 kcal

Equipment

  • 9x9 inch baking pan
  • Parchment paper
  • microwave safe bowl
  • Butter knife
  • Wire rack

Ingredients
  

Main Ingredients

  • 4 oz bittersweet chocolate chopped
  • ¾ cup unsalted butter cut into chunks
  • ½ cup unsweetened cocoa powder
  • 1 cup granulated sugar
  • ½ cup brown sugar packed
  • 3 large eggs room temperature
  • 1 tbsp pure vanilla extract
  • ½ tsp instant espresso powder optional
  • ¾ cup all purpose flour
  • ½ tsp kosher salt
  • ¾ cup chopped peanut butter cups plus more for topping
  • ¾ cup peanut butter baking chips plus more for topping
  • 3 tbsp unsalted butter melted, for the swirl
  • ¾ cup creamy peanut butter conventional style, for the swirl
  • ⅓ cup powdered sugar for the swirl
  • 1 tsp pure vanilla extract for the swirl

Instructions
 

Cooking

  • Prep the pan. Heat the oven to 350 degrees F, grease a 9x9 inch pan, and line it with a parchment sling.
  • Melt the chocolate. Microwave the chocolate and butter at half power in 30 second pops, stirring until smooth.
  • Make the batter. Whisk in the cocoa, both sugars, eggs, vanilla, espresso powder, flour, and salt, then fold in the peanut butter cups and chips.
  • Make the swirl. Stir the melted butter, peanut butter, powdered sugar, and vanilla in a separate bowl until just combined.
  • Layer and swirl. Spread two thirds of the batter in the pan, dollop on the filling, cover with the rest of the batter, and swirl once or twice with a butter knife. Top with more cups and chips.
  • Bake. Bake for 30 to 35 minutes, until a toothpick shows a few moist crumbs, then cool for 1 hour before cutting.

Notes

Substitutions: Use almond or sunflower butter in the swirl, or swap the peanut butter chips for chocolate or caramel chips.
Tips: Do not overswirl. Use conventional creamy peanut butter so the swirl holds its shape. Do not taste the raw batter because it contains raw eggs.
Storage: Keep at room temperature for up to 4 days, refrigerate for up to 1 week, or freeze for up to 3 months.
Keyword Chocolate Peanut Butter Brownies, Fudgy Brownies, Peanut Butter Brownies, Peanut Butter Cup Brownies, peanut butter swirl brownies