1 (18 oz.) jar peanut butter
1 1/2 c. powdered sugar (if too sweet, use less)
1 (8 oz.) pkg. cream cheese
1 (12 oz.) container Cool Whip
1 graham cracker pie shell

Combine peanut butter and sugar together with electric mixer. Add cream cheese and mix again. Fold in Cool Whip. Put in pie shell and chill.