Butterfinger Angel Dessert

1 angel food cake
2 cups confectioners' sugar
1/2 cup butter
2 teaspoons vanilla extract
1 quart whipped cream

Break up angel food cake into pieces. With a mixer, mix confectioners' sugar, butter and vanilla extract. Fold in whipped cream. Put into a pan half of angel food cake and half of cream mixture over cake. Crush 5 or 6 Butterfinger candy bars. Sprinkle over cream mixture. Put rest of cake on. Add remaining cream mixture. Sprinkle remaining candy bar on top.