1 (6 oz.) pkg. (1 c.) semi-sweet chocolate pieces
1/2 c. butter
1/4 c. water
4 slightly beaten egg yolks
2 tbsp. sifted confectioners' sugar
1 tsp. vanilla
1 (12 oz.) loaf pound cake

In heavy saucepan heat chocolate, butter and water over medium heat, stirring until blended. Cool slightly. Add egg yolks, sugar and vanilla. Stir until smooth. Chill until mixture is of spreading consistency, about 45 minutes.

Slice cake horizontally in 6 layers. Spread chocolate between layers, then frost top and sides. Chill at least 45 minutes before serving. Cut in 1/4 inch slices.