01 - Crush 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 refrigerator while preparing filling.
02 - In a large bowl, beat together peanut butter, cream cheese, and powdered sugar until completely smooth and no lumps remain.
03 - In a separate bowl, whip cold heavy cream and vanilla extract until stiff peaks form. Do not overbeat.
04 - Gently fold whipped cream into peanut butter mixture until just combined and smooth. Spread filling evenly into chilled crust.
05 - Heat 1/4 cup heavy cream until steaming, then pour over chocolate chips. Let sit 2 minutes, then stir until completely smooth and glossy.
06 - Spread ganache over peanut butter layer. Sprinkle with chopped peanuts if desired. Refrigerate for at least 4 hours or until completely set. Slice and serve chilled.