Butterfinger Pie

8 oz cream cheese softened
1 cup powdered sugar
1/2 cup smooth peanut butter
2 tsp vanilla
8 oz Cool Whip
6-8 snack size Butterfinger bars crushed
Graham cracker or chocolate pie crust
Mix cream cheese and sugar until smooth, add peanut butter and vanilla and mix until smooth and well blended. Fold in the crushed candy bars, reserving a few tablespoons for topping, and then the cool whip. Put mixture in pie shell and sprinkle remaining candy on top. Chill for a few hours before serving.