Then you take your eggs and seperate the whites from the yolks. Beat both. Then you take the cool whip and add both eggs and tsp of vanilla and stir well.
Then you find a pretty glass bowl to make layers of desert or whatever container you would like. First layer you take angel food cake and cut 1/3 of the cake into bite size pieces. Then you put a layer of cool whip mixture on top of that. Then you sprinkle crushed butterfingers on top of cool whip, enough to cover completely. Then you just repeat layering until butterfingers are last on top. Usually about 3 layers. Keep refrigerated!