Preheat oven to 375 ℉

Press the peanut butter cookie dough into the bottom of a 13X9” casserole dish

Add the peanut butter cups in a single layer

Prepare your brownie recipe, adding in ¼ cup of the peanut butter

Pour evenly over the peanut butter cups, making sure there are no gaps

Bake for 30-45 minutes or until a toothpick comes out clean 1 ½ inches away from the edge

While the brookies are baking, mix the remaining peanut butter, powdered sugar, wand water in a small bowl. Add more water as needed to make a thin, but not watery, glaze

When the brookies are done, let them cool for about 10 minutes then drizzle the glaze over the brookies and top with Reese’s Pieces if desired.