• 4 c flour
• 6 T sugar
• 2 ½ T baking soda
• 1 ½t salt
• 6 egg yolks
• 3 c milk
• 1 c shortening or oil
• 6 egg whites, stiffly beaten

Mix first 4 ingredients. Add next 2. Add shortening. Add egg whites.

Source: Linda Korhonen