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5 from 1 vote

Peanut Butter Layered Brownies

These Peanut Butter Layered Brownies combine a layer of fudgy peanut butter blondie, a layer of chocolate peanut butter pie oreos, and a layer of super fudgy double chocolate brownie for the ultimate treat!
Prep Time30 minutes
Cook Time40 minutes
Total Time1 hour 10 minutes
Course: Dessert
Cuisine: American
Keyword: brownies, chocolate, layered brownies, oreo, peanut butter, slutty brownies

Ingredients

For the Fudgy Peanut Butter Blondie Layer

  • 1/2 cup unsalted butter, melted (1 stick)
  • 1/2 cup creamy peanut butter Do NOT use natural peanut butter, it is too oily. I use Peanut Butter Company Smooth Operator
  • 1 cup dark brown sugar lightly packed
  • 1/2 tbsp vanilla extract
  • 1 large egg room temperature
  • 1 cup all-purpose four
  • 20 Chocolate Peanut Butter Pie Oreos

For the Chocolate Brownie Layer:

  • 3/4 cup unsalted butter, melted (1.5 sticks)
  • 3/4 cup dark brown sugar lightly packed
  • 1/4 cup granulated sugar
  • 2 tsp vanilla extract
  • 2 large eggs room temperature
  • 2/3 cup cocoa powder I use the King Arthur Double Dutch Dark Cocoa
  • 1/2 cup all-purpose flour
  • 1 tsp espresso powder
  • 1/2 tsp kosher salt
  • 1/2 tsp baking powder
  • 1/2 cup semi-sweet chocolate chips

Instructions

  • Preheat the oven to 350F.
  • Prepare a 9 inch square baking dish by lining it with parchment paper (leave some overhand on the sides so its easy to remove the layered brownies once they are done baking) and spraying with cooking spray or greasing with butter.

To make the Fudgy Peanut Butter Blondie Layer

  • In a large bowl, combine the melted butter, peanut butter, brown sugar, and vanilla. Whisk to combine.
  • Add the egg and whisk to combine.
  • Using a wooden spoon, stir in the flour until a thick batter is formed and the flour is completely incorporated.
  • Add the batter to your prepared pan and use a rubbert spatula to even out the batter into one smooth layer.
  • Top with your oreos. You will need to break a few in half to get the batter completely covered.

To make the Chocolate Brownie Layer

  • In a large bowl, whisk together the butter and sugars until combined.
  • Add the egg and vanilla and whisk vigorously for a few minutes until thickened. You want to beat the egg more than you would normally to help create a glossy and crackly top.
  • In a small bowl, whisk together the dry ingredients (cocoa powder, flour, espresso powder, baking powder, salt).
  • Add the dry ingredients into the wet mixture and stir to combine.
  • Once your batter is formed, stir in the chocolate chips.
  • Pour the batter over the oreo layer and use a rubber spatula to smooth out the brownie layer.
  • Bake for 35-40 minutes, until the center is set and a toothpick inserted into the center comes out almost entirely clean.
  • Allow the brownies to cool in the pan for an hour before transfering to a cooling rack. To transfer, run a knife around the edge of the pan and then simply lift the parchment paper out of the baking dish.
  • Allow to cool on the cooling rack for at least another until, until room temperature. It is so hard to cut these when they are still warm.
  • If you are so inclined, you can melt an additional tablespoon of peanut butter in the microwave and drizzle that over top of the brownies. Not necessary but extra peanut butter is always extra delicious!
  • Slice and enjoy!