Chocolate Ice Box Cake

Ingredients:

1/2 lb German sweet chocolate
3 tb Boiling water
1 c Powdered sugar
2 Egg yolks
1 ts Vanilla
2 Beaten egg whites
1 pt Cream, whipped
3/4 Of an angel food cake (mix can be used)

Directions:
Melt chocolate and boiling water together, remove from stove and add cup of powdered sugar and 2 egg yolks, beaten. Add vanilla, egg whites beaten moderately stiff, and fold in whipped cream. Break angel food cake into irregular pieces. Place half the cake bits in a pan, cover with half the chocolate custard. Add remaining cake, and cover generously with remaining chocolate. Chill twelve hours, or overnight, in refrigerator.