Crush the 24 chocolate sandwich cookies into fine crumbs using a food processor or rolling pin.
Combine the cookie crumbs with the melted butter until evenly moistened.
Press the mixture firmly into the bottom and up the sides of a 9-inch (23 cm) pie dish. Refrigerate for 20–30 minutes.
Beat the softened cream cheese and creamy peanut butter together until smooth.
Add the powdered sugar and vanilla extract. Mix until fully combined.
In a separate bowl, whip the cold heavy cream until stiff peaks form.
Gently fold the whipped cream into the peanut butter mixture in two or three additions.
Spoon the filling into the chilled crust and spread it evenly.
Cover the pie and refrigerate for at least 6 hours, preferably overnight, until firm.
Decorate with optional whipped cream, chocolate sauce, chopped peanuts, or peanut butter cups.
Slice with a sharp knife, wiping the blade between cuts, and serve chilled.