Ultra-fudgy chocolate brownies topped with creamy peanut butter frosting and crunchy homemade puppy chow. The ultimate chocolate peanut butter dessert for parties, holidays, bake sales, and every peanut butter lover.
Prep the Pan: Preheat the oven to 350°F. Line a 9x13-inch baking pan with parchment paper and lightly grease.
Make the Brownie Batter: In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Add the eggs and vanilla extract and whisk until well combined. Add the flour, cocoa powder, espresso powder (if using), and salt. Stir until just combined. Fold in 1 cup of the chopped chocolate.
Bake the Brownies: Spread the batter evenly into the prepared pan. Sprinkle the remaining 1/4 cup chopped chocolate over the top. Bake for 25 to 35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs attached. Check early and do not overbake. Cool the brownies completely in the pan.
Make the Peanut Butter Frosting: In the bowl of a stand mixer fitted with the paddle attachment, beat the peanut butter and butter until smooth and creamy. Add the powdered sugar, salt, vanilla extract, and heavy cream. Beat until light and fluffy.
Frost the Brownies: Spread the peanut butter frosting evenly over the cooled brownies.
Add the Puppy Chow: Sprinkle the puppy chow evenly over the frosting, gently pressing it into the frosting so it adheres.
Slice and Serve: Cut into squares and serve.
Notes
Don't overbake the brownies. A toothpick should come out with a few moist crumbs for the fudgiest texture.
Cool the brownies completely before frosting.
Use regular creamy peanut butter (not natural) for the smoothest frosting.
Gently press the puppy chow into the frosting so it adheres without breaking apart.
For the freshest look and crunch, add the puppy chow the day you plan to serve the brownies.
If storing covered, the powdered sugar coating may lose some of its bright white appearance over time because of moisture. This is completely normal and doesn't affect the flavor. You can always dust the brownies with extra powdered sugar.
For clean slices, chill the brownies for 20 to 30 minutes before cutting and wipe the knife clean between slices.