01 - Preheat oven to 350°F. Process Oreo cookies with filling into fine crumbs. Combine with melted butter until mixture resembles wet sand. Press firmly into bottom and up sides of a 9-inch pie dish. Bake for 10 minutes, then allow to cool completely on wire rack.
02 - Beat peanut butter and softened cream cheese in large bowl until completely smooth. Add powdered sugar and mix until fully incorporated. In separate bowl, whip heavy cream to stiff peaks. Gently fold whipped cream into peanut butter mixture until no streaks remain.
03 - Spread peanut butter filling evenly over cooled crust. Cover and refrigerate for minimum 2 hours or until filling is completely set.
04 - Whip remaining heavy cream with powdered sugar until stiff peaks form. Spread or pipe whipped cream over chilled pie surface. Sprinkle crushed Oreo cookies over top as garnish.
05 - Slice pie while cold and serve immediately. Store leftovers covered in refrigerator for up to 3 days.