8 oz. cream cheese
1 c. creamy peanut butter
1 c. sugar
1 tbsp. butter, softened
1 tsp. vanilla
1 c. Cool Whip
1 graham cracker or chocolate cookie pie crust

Beat all ingredients except Cool Whip until smooth. Fold in Cool Whip. Spoon into crust; top with grated chocolate bar or cookie crumbs. Refrigerate before serving.