Peanut Butter Swirl Brownies
Prep time
Cook time
Total time
Rich, fudgy brownies made with a simple peanut butter swirl.
Serves: 20-25 brownies
For the Brownies:
  • 1 cup (2 sticks) unsalted butter
  • 2¼ cup granulated sugar
  • 4 eggs
  • 1¼ cup cocoa powder
  • 1 teaspoon baking powder
  • 1 teaspoon kosher salt
  • 1 tablespoon vanilla extract
  • 1½ cups all-purpose flour
  • 2 cups chocolate chips
For the Peanut Butter Swirl:
  • ¾ cup peanut butter
  • ½ cup powdered sugar
  • 4 tablespoons unsalted butter, melted
  • ½ teaspoon vanilla extract
  • ¼ teaspoon kosher salt
  1. Line and/or grease a 9x13-inch baking pan and set it aside. Preheat your oven to 350 degrees F.
  2. In a medium sized pot over medium heat, melt your butter, then add in your sugar. Whisk until the mixture is hot and the sugar is shiny, but not bubbling (you don't want it to turn to caramel). Whisk continuously until more of the sugar has dissolved, to about 115 degrees F, then set aside.
  3. Whisk together your eggs, cocoa powder, baking powder, salt, and vanilla in a large bowl. Add in the hot sugar and butter mixture and whisk until smooth. Add in the flour and chocolate chips and mix until just combined. Spread the batter into your prepared 9x13-inch pan.
  4. Beat together your peanut butter, powdered sugar, melted butter, vanilla and salt. Spoon dollops of this mixture over the top of your brownies, then swirl with a butter knife or spatula. Bake your brownies for 35-45 minutes, until set (start checking on them around 30 minutes) - a toothpick inserted into the brownies will still have a few crumbs on it, but you don't want them to be too fudgy to the point where you can't slice them. Remember that the brownies will thicken as they cool, too.
  5. Allow the brownies to cool completely before slicing and sprinkling with powdered sugar, if you like.
Recipe by The Crepes of Wrath at