Peanut Butter Brookies

Peanut Butter Cookie Brownie Bars featured image

4.34 from 3 votes

Peanut Butter Cookie Brownie Bars are the best bite of 2 desserts combined into one sweet treat. It is so quick and easy to make soft and chewy brownies that bake beneath peanut butter cookie batter.

Prep Time5

Cook Time30

Total Time35

Course: Dessert

Cuisine: American

Servings:

Calories: 319kcal

Author: Jennifer Fishkind

Ingredients

1 7.2-ounce packet peanut butter cookie mix (plus ingredients on package)
¼ cup Reese’s pieces plus more for sprinkling
1 18-ounce box brownie mix (plus ingredients on package)

Instructions

Place parchment paper with high edges in a 7x11 casserole dish and preheat oven to 350F degrees.
Start with making your peanut butter cookies in a medium to small bowl with the ingredients on the packet.
Stir in ¼ cup of Reese’s pieces, reserving some to sprinkle later, and set aside.
Following the brownie mix directions, make your brownie batter, and pour into a 7x11 dish. Note: you may need to spread around the batter to fit edge to edge.
Lightly sink flattened cobblestone-like cookies into the brownie batter with the cookie dough.
Add any additional Reese’s pieces to the exposed brownie parts, if desired.
Bake for about 35-40 minutes, until the brownies come out clean but moist when a toothpick is inserted.
Place 7x11 dish on a wire rack. Allow the cookie bars to fully cool before removing; this makes it easier to remove them from the dish and allows them to cut better.
Serve on their own or with a glass of milk.

Notes

Storage:

To Store: Store cooled Brookies in a closed container at room temperature for 2-3 days. You can also store them in the fridge for 4-5 days.
To Freeze: You can freeze these bars in a freezer safe container or zip loc bag for up to 3 months.

Tips:

Allow the cookie bars to fully cool before removing; this makes it easier to remove them from the dish and allows them to cut better.
Serve this as a snack with a glass of milk or simply on their own.

Nutrition