These rich chocolate buckeye brownies are filled with 3 delicious layers of chocolate and peanut butter. The easiest chocolate peanut butter brownies using brownie mix!
Ingredients
Brownie Base:
1boxbrownie mix, plus ingredients on box (use a box mix that calls for a 9×13" pan)
Preheat oven to 350°F. Line a 9×13" pan with parchment paper or foil and lightly grease with non-stick cooking spray.
Mix brownie mix with ingredients listed on package, then pour in pan and bake according to directions on the box. Allow to cool completely.
Peanut Butter Layer:
In a large bowl, mix together 1/2 cup butter, 3/4 cup peanut butter and 1 teaspoon vanilla. Add in 1/4 cup brown sugar. Slowly beat in 1 3/4 cups powdered sugar. If it's too thin, add another Tablespoon of powdered sugar. If it gets too thick, add a splash of milk.
Add small scoops evenly over the brownie layer. Then gently press down with a spatula.
Chocolate Ganache:
For the ganache, add 1 1/2 chocolate chips and 1/3 cup heavy cream to a microwave-safe bowl. Microwave for 1 minute, then stir until smooth. Pour over the peanut butter layer and spread evenly. Refrigerate brownies for 20 minutes or until glaze is set.
Once chocolate has set, slice brownies with a plastic knife (trust me it works best).
Notes
Storage: Keep leftovers in an airtight container in the refrigerator for up to 5 days. Serve cold or let them come to room temperature before eating.Freezer: Flash freeze brownies first, then transfer to a freezer-safe container or wrap individually in plastic wrap for up to 3 months.