White cake 4 egg whites 2 cups all-purpose flour 1 teaspoon baking powder 1/2 teaspoon baking soda 1/8 teaspoon salt 1/2 cup shortening or butter, softened 1 3/4 cups sugar 1 teaspoon vanilla 1 1/3 cups buttermilk or sour milk 1. Allow egg whites to stand at room temperature for 30 minutes.
1. Heat oven to 325°F. Grease and flour a square pan, 8 x 8 x 2 inches. Measure all ingredients into large mixing bowl. Blend 1/2 minute on low speed, scraping bowl constantly. Beat 3 minutes on high speed. Pour into pan.
Instructions Cream sugar and shortening. Sift flour, measure, and sift with baking powder and salt. Add alternately with milk to creamed sugar and shortening. Beat thoroughly. Add flavoring. Carefully fold in stiffly beaten egg whites. Pour into well-oiled layer cake pans. Bake in moderate oven (375