Ingredients
1/2 pound butter at room temp
3 cups sugar
6 eggs, separated
3 cups sifted plain flour
1/4 teaspoon baking soda
8 oz sour cream
1 tsp vanilla
Preparation
Cream butter and sugar; add egg yolks one at a time, beating after each addition. Sift flour with baking soda and add to butter mixture. Add sour cream and vanilla. Blend until smooth. Fold in softly beaten egg whites. Pour into a greased tube or bundt pan and bake at 300 degrees for 90 minutes.
