01 - Pulse chocolate sandwich cookies in a food processor until fine crumbs form, or seal in a plastic bag and crush with a rolling pin. Transfer crumbs to a bowl, add melted butter, and mix until evenly coated. Press firmly into the bottom and up the sides of a 9-inch pie dish. Refrigerate while preparing filling.
02 - Using an electric mixer, beat peanut butter, cream cheese, and powdered sugar in a large bowl until completely smooth and creamy, about 2-3 minutes.
03 - In a separate chilled bowl, whip cold heavy cream and vanilla extract with electric beaters until stiff peaks form, being careful not to overbeat.
04 - Gently fold whipped cream into peanut butter mixture using a rubber spatula until just incorporated and smooth. Spread evenly into chilled crust, smoothing the top.
05 - Heat 1/4 cup heavy cream in microwave until steaming, about 30-45 seconds. Pour over chocolate chips in a small bowl. Let stand 2 minutes, then stir until completely smooth and glossy.
06 - Pour ganache over peanut butter layer, spreading evenly. Sprinkle with chopped peanuts. Refrigerate at least 4 hours until completely set. Slice and serve cold.