1 baked pie shell, cooled
1 (3 oz.) pkg. cream cheese, softened
1 c. confectioners' sugar
1/2 c. chunky peanut butter
1 (8 oz. or 10 oz.) pkg. whipped topping

Mix ingredients; fold in topping. Pour into baked pie shell. Refrigerate for several hours. Spread some Cool Whip on top for garnish. Cut small serving pieces. Very rich!