German Chocolate Cake - cooking recipe

Ingredients

1/2 c. boiling water
4 oz. bar sweet cooking chocolate
2 c. sugar
1 c. butter
4 egg yolks
1 tsp. vanilla
2 1/2 c. cake flour
1 tsp. baking soda
1 tsp. salt
1 c. buttermilk
4 egg whites, beaten
German chocolate icing (from can)

Preparation

Heat oven to 350\u00b0.
Grease pan and line with wax paper.
Pour batter in pan and bake for 45 minutes.