Preheat your oven to 350°F and give a pie pan a good coat of non-stick spray, then set it aside.
Crush the cookies using a food processor, blender, or just by hand in a plastic bag. Mix the cookie crumbs with melted butter until everything's nicely coated.
Firmly press the crumb mixture into the bottom and up the sides of the pie pan. Bake for 8-10 minutes. Let it cool completely on a wire rack.
Filling:
Use an electric mixer to beat together the peanut butter and cream cheese until smooth and thick. Next, blend in the powdered sugar, then fold in the cool whip.
Once your crust is completely cooled, fill it with the peanut butter mixture, spreading it evenly. Top with Reese's cups or any preferred toppings.
Chill the pie in the freezer for at least 3 hours or in the fridge for 5 hours before serving. Best served cold.