German Chocolate Cake - cooking recipe

Ingredients

1/2 c. boiling water
1 bar (4 oz.) sweet cooking chocolate
2 c. sugar
1 c. margarine or butter, softened
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, stiffly beaten

Preparation

Heat oven to 350\u00b0.
Grease 2 square pans, 8 x 8 x 2-inch or 9 x 9 x 2-inch or 3 round pans 9 x 1 1/2-inches.
Line bottom of pans with waxed paper.
Pour boiling water on chocolate, stirring until chocolate is melted; cool.