2 sticks butter
3 c. sugar
3 c. flour
1 tsp. baking soda
1 c. sour cream
6 eggs, separated
2 tsp. vanilla
Pinch of salt

Beat egg whites until stiff. Cream butter and sugar. Add egg yolks, one at a time, beating well after each addition. Sift together flour, soda and salt. Add the flour mixture to the creamed mixture alternately with the sour cream; beat well. Gently fold in egg whites.

Bake in a well greased and floured tube pan at 300°F for 90 minutes or until cake tests done.