Process Oreo cookies into fine crumbs. Mix with melted butter and press into a 9-inch pie plate. Refrigerate for 15 minutes.
Beat peanut butter, cream cheese, and powdered sugar until smooth. Fold in whipped topping and chopped peanut butter cups.
Spoon the filling into the chilled crust and spread evenly. Chill for at least 2 hours.
Drizzle chocolate fudge sauce over the pie and garnish with whipped topping and an Oreo cookie. Serve chilled.
Notes
- Let the pie chill for the full 2 hours for easy slicing. - Add extra toppings like chopped nuts or caramel drizzle for a decadent finish. - Store in the refrigerator for up to 5 days or freeze for up to 3 months.