Quote from the book "Selections from Aunt Sammy's Radio Recipes and USDA Favorites"

Table of Contents 1½ cups milk. 2 cups sifted cake flour. 3 tablespoons fat. 2 eggs. 3 teaspoons baking powder. 1½ tablespoons sugar. ¾ teaspoon salt. Mix the dry ingredients, add the milk and egg yolks, then the melted fat, and lastly fold in the beaten whites of eggs. Have the waffle iron hot enough to brown the waffle quickly and well greased unless it is the electrically heated aluminum kind. In that case, add an extra tablespoon of melted shortening to the batter.