Sour Cream Pound Cake
["2 sticks butter", "3 c. cake flour", "6 eggs, separated", "1 small c. sour cream", "3 c. sugar", "1/4 tsp. soda", "1 tsp. vanilla"]
["Mix sugar, butter and egg yellows.", "Sift flour and soda together; beat together.", "Add sour cream; add vanilla.", "Add stiffly beaten egg whites.", "Bake at 350\u00b0 for 1 1/2 hours."]
["butter", "cake flour", "eggs", "sour cream", "sugar", "soda", "vanilla"]