German Sweet Chocolate Cake - cooking recipe

Ingredients

2 1/2 c. sifted cake flour
1 tsp. soda
1/2 tsp. salt
1 pkg. Baker's German's sweet chocolate
1/2 c. boiling water
1 c. margarine
4 egg yolks (unbeaten)
1 tsp. vanilla
2 c. sugar
1 c. buttermilk
4 egg whites

Preparation

Measure sifted flour; add soda and salt.
Sift again.
Melt chocolate in boiling water; cool.
Cream butter and sugar until fluffy.
Add yolks, one at a time, beating after each.
Add chocolate and vanilla.
Add flour mixture alternately with buttermilk, beating after each addition until smooth.
Beat egg whites to stiff peaks.
Fold into batter.