German Chocolate Cake
["4 oz. Germans sweet chocolate", "1/2 c. water", "1 tsp. baking soda", "1/4 tsp. salt", "2 c. sugar", "4 egg yolks", "1 tsp. vanilla", "1 c. margarine", "4 egg whites, beaten until stiff", "1 c. buttermilk"]
["Heat chocolate and water until chocolate is completely melted.", "Mix margarine and sugar until fluffy; add egg yolks. Stir in chocolate and water mixture and flour and buttermilk; mix until smooth.", "Fold egg whites into batter.", "Pour into wax paper-lined 1-inch round pans.", "Bake in 350\u00b0 oven for 30 minutes."]
["sweet chocolate", "water", "baking soda", "salt", "sugar", "egg yolks", "vanilla", "margarine", "egg whites", "buttermilk"]