1 angel food cake (can be store bought)
1 lb. Cool Whip
2 c. confectioners' sugar
1 stick butter
4 egg yolks
6 Butterfinger candy bars

Crumble half of angel food cake in bottom of pan. Mix other ingredients except Butterfinger. Sparingly spread half of mixture over cake crumbs. Crush 3 Butterfingers and spread over Cool Whip mixture. Then repeat. Chill.