German Sweet Chocolate Cake - cooking recipe

Ingredients

1 (4 oz.) pkg. Baker's German's sweet chocolate
1/3 c. boiling water
2 c. sifted cake flour
3/4 tsp. baking soda
1/4 tsp. salt
3/4 c. butter or margarine
1 1/3 c. sugar
3 egg yolks
3/4 tsp. vanilla
3/4 c. buttermilk
3 egg whites, stiffly beaten
Coconut-Pecan Filling and Frosting (recipe follows)

Preparation

Melt chocolate in boiling water.
Cool.
Sift flour with soda and salt.
Cream butter.
Gradually beat in sugar and continue beating until light and fluffy.
Add egg yolks, one at a time, beating after each.
Blend in vanilla and chocolate; mix until blended.
Add flour mixture alternately with buttermilk, beating after each addition until smooth.
Fold in egg whites.