01 - Crush chocolate sandwich cookies into fine crumbs using a food processor or place in a resealable bag and crush with a rolling pin. Combine crumbs with melted butter until evenly mixed. Press mixture firmly into the bottom and up the sides of a 9-inch pie dish. Refrigerate while preparing the filling.
02 - In a large bowl, beat peanut butter, cream cheese, and powdered sugar until smooth and creamy. In a separate bowl, whip heavy cream and vanilla extract until stiff peaks form. Gently fold whipped cream into peanut butter mixture until just combined and no streaks remain.
03 - Spread filling evenly into the chilled crust, smoothing the top with a rubber spatula.
04 - Heat 1/4 cup heavy cream until steaming. Pour over chocolate chips and let sit for 2 minutes. Stir until smooth and glossy. Spread ganache over the peanut butter layer. Sprinkle with chopped peanuts if desired.
05 - Refrigerate pie for at least 4 hours or until completely set. Slice and serve cold.