German Chocolate Cake - cooking recipe

Ingredients

1 (4 oz.) pkg. sweet chocolate
1/2 c. boiling water
1 c. butter
2 c. sugar
4 egg yolks
1 tsp. vanilla
2 1/2 c. sifted flour
1 c. buttermilk
4 egg whites, slightly beaten

Preparation

Melt chocolate in boiling water; cool.
Cream butter and sugar until fluffy.
Add yolks, one at a time, beating well after each. Blend in vanilla and chocolate.
Sift flour; fold in egg whites. Add buttermilk, mixing until smooth.
Pour into 3 (9-inch) layer pans.
Bake at 350\u00b0 for 30 to 35 minutes.
Cool.