Peanut butter cheesecake, filled with peanut butter cups. All on top of a brownie bottom crust. That is also filled with peanut butter cups. Extremely decadent. And delicious.
You might have to play with this recipe depending on elevation and humidity differences for different areas. I live in Colorado and use 1 1/2 to 1 3/4 cups of flour. Good luck! :-)