German Chocolate Cake - cooking recipe

Ingredients

1 pkg. German sweet chocolate
1/2 c. boiling water
1 c. butter or margarine
2 c. sugar
4 egg yolks, unbeaten
1 tsp. vanilla
1/2 tsp. salt
1 tsp. soda
2 1/2 c. cake flour
1 c. buttermilk
4 egg whites, stiffly beaten

Preparation

Melt chocolate in boiling water.
Cool.
Cream butter and sugar until fluffy.
Add egg yolks, one at a time.
Beat well after each.
Add melted chocolate and vanilla. Mix well.