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Fudgy Peanut Butter Cup Brownies Easy Recipe with Gooey Chocolate Swirls

fudgy peanut butter cup brownies - featured image

These fudgy peanut butter cup brownies feature gooey chocolate swirls and a rich, dense texture, perfect for potlucks, family gatherings, or a sweet treat anytime.

Ingredients

Scale
  • 1/2 cup (115g) unsalted butter, melted
  • 1 cup (200g) granulated sugar
  • 1/2 cup (110g) brown sugar, packed
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 3/4 cup (95g) all-purpose flour
  • 1/2 cup (50g) unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1 cup chopped peanut butter cups (about 8 standard-size cups)
  • 1/2 cup (90g) semi-sweet chocolate chips
  • 3 tablespoons (45ml) heavy cream

Instructions

  1. Preheat your oven to 350°F (175°C). Grease your 8×8 inch baking pan or line it with parchment paper, leaving some overhang for easy removal.
  2. Melt the butter in a microwave-safe bowl or on the stovetop until fully liquid. Let it cool slightly (about 3 minutes) so it doesn’t cook the eggs later.
  3. Whisk together sugars and melted butter in a large bowl until smooth and glossy, about 1-2 minutes.
  4. Add eggs, one at a time, whisking well after each addition. Then stir in the vanilla extract.
  5. In a separate bowl, sift together the flour, cocoa powder, and salt.
  6. Slowly fold the dry ingredients into the wet mixture using a spatula. Fold gently until just combined.
  7. Fold in the chopped peanut butter cups until evenly distributed.
  8. Prepare the chocolate swirl: In a small microwave-safe bowl, combine the chocolate chips and heavy cream. Microwave in 20-second intervals, stirring in between, until smooth and glossy.
  9. Pour half the brownie batter into the prepared pan and spread evenly. Drizzle half the melted chocolate mixture over the batter.
  10. Add the remaining batter on top, spreading carefully to avoid mixing layers. Then drizzle the remaining melted chocolate over the top.
  11. Using a knife or skewer, gently swirl the chocolate into the batter to create gooey ribbons.
  12. Bake for 25-30 minutes until edges are set and pulling away slightly, and the center looks just set but still moist (a toothpick inserted will come out with a few moist crumbs).
  13. Cool in the pan on a wire rack for at least 30 minutes before slicing.

Notes

To prevent peanut butter cups from sinking, toss them lightly in cocoa powder before folding into the batter. Do not overbake to keep brownies fudgy. Use room temperature eggs for smooth batter. Cool brownies completely before slicing for clean cuts. For gluten-free, substitute flour with a 1:1 gluten-free baking blend. For dairy-free, use coconut oil and dairy-free chocolate chips.

Nutrition

Keywords: fudgy brownies, peanut butter cup brownies, chocolate swirl brownies, easy brownies, gooey brownies, peanut butter desserts