Sour Cream Cake - cooking recipe

Ingredients

1 c. butter, softened
3 c. sugar
6 eggs, separated
3 c. sifted all-purpose flour
1 c. sour cream
1/4 tsp. soda

Preparation

Cream butter and sugar in a mixing bowl until light and fluffy.
Blend in egg yolks, one at a time.
Add sifted mixture of soda and flour alternately with sour cream, mixing well after each addition.