Angel food cake mix, while cooling mix 1 cup powdered sugar, 4 egg yolks and 1/2 cup butter; mix until creamy. Add another cup powdered sugar and mix together. Whip 1 pint whipping cream, fold into powdered sugar and egg mixture. 7 butterfinger bars crushed with rolling pin.
Use 1/2 of angel food cake, break into bite-size pieces, spread on bottom of 9 x 13 inch pan, spread 1/2 of whipping cream mix on top, then 1/2 of crushed butterfinger bars. Repeat the layers and refrigerate.