Cookie dough bottom, brownie, Oreo, PB cup middle, and brownie top.
Spread premade (or homemade) dough on greased 9by13in pan. Top with some brownie batter. Add a layer of Oreos and PB cups. Top with brownie batter. Bake at 375 for 40min, or until baked through and golden. Serve with icecream and hotfudge.