1 angel food cake, crumbled
1 stick butter
4 egg yolks
2 c. confectioners sugar
1 tsp. vanilla
1 ( 16 oz. ) Cool Whip
8 large Butterfinger bars 

Two or more hours ahead, freeze candy bars in wrappers. Crush bars ( while still in wrappers ) using a rolling pin. Creambutter, egg yolks, sugar and wanilla and add Cool Whip. Layer 9 x 13 - inch pan with 1/2 angel food
cake; next layer 1/2 creamed mixture; next layer 1/2 Butterfingers. Reapeat and serve.