Social Hit! Ice Box Cake: Retro Ad & Recipe

I just love the Baker Ads and recipes from the 30s and 40s, especially the 'story' ads. This one if about "How 'That Little Mrs. Bundy' got to be 'Such Friends' with the Banker's Wife." This Chocolate Ice Box Cake 'broke the ice' and cemented their friendship.. but why would she want to be friends with someone this 'stiff and snobbish'? Nevertheless, Mrs. Bundy sure was a 'social hit!' This Ice Box (no bake) cake is still terrific in 2020, and you won't be heating up the kitchen!

CHOCOLATE ICEBOX CAKE 

Ingredients
1 package Baker’s German’s Sweet Chocolate, melted
1-1/2 Tbsp water
1 egg yolk, unbeaten
1 Tbsp confectioners’ sugar
1/2 cup whipping cream
1 egg white, stiffly beaten
12 ladyfinger halves

Directions
Blend melted chocolate with water. Add egg yolk and beat until smooth. Mix in sugar.
Whip cream and fold into chocolate.
Fold in beaten egg white.
Line 8 x 4 x 3-inch loaf pan with wax paper.
Layer wafers with chocolate mixture.
Chill overnight.
Unmold.

Serves 5
   
Really - 5? Would that be the parents and 3 children? or the Banker's Wife?