STEP ONE: ASSEMBLE FIRST TWO LAYERS
Press cookie dough into the bottom of the pan in an even layer. Top the cookie dough with a single layer of peanut butter cups.
STEP TWO: MAKE BROWNIES
Prepare the brownie batter according to the directions on the package using water, oil and eggs.
STEP THREE: ADD FINAL LAYER
Spread the brownie mixture on top of the layer of peanut butter cups. Bake for 30 to 40 minutes or until the brownies are set around the edges and a toothpick inserted in the center comes out clean. Remove the pan from the oven and cool for 20 minutes. Lift the brownie out of the pan using foil edges; cool completely on a wire cooling rack. Cut them into squares and serve.