01 - Crush the chocolate sandwich cookies into fine crumbs using a food processor or by placing them in a resealable bag and crushing with a rolling pin. Combine crumbs with melted butter until well mixed. Press the mixture firmly into the bottom and up the sides of a 9-inch pie dish. Chill in the refrigerator while you prepare the filling.
02 - In a large bowl, beat together the peanut butter, cream cheese, and powdered sugar until smooth. In a separate bowl, whip the heavy cream and vanilla extract until stiff peaks form. Gently fold the whipped cream into the peanut butter mixture until just combined and smooth. Spread the filling evenly into the chilled crust.
03 - Heat 1/4 cup heavy cream until steaming, then pour over chocolate chips. Let sit 2 minutes, then stir until smooth. Spread ganache over the peanut butter layer. Sprinkle with chopped peanuts if desired.
04 - Chill the pie in the refrigerator for at least 4 hours, or until completely set. Slice and serve chilled.