3 eggs

¾ cup shaved or grated maple sugar 3/8 cup potato flour (scant half cup) ½ teaspoon baking powder

1 level teaspoon salt

Cream the yolks of the eggs and the sugar together very, very thoroughly.

Beat the whites stiff and add to the above mixture. Also add salt. Sift the flour and baking powder and add.

Bake at once in a deep tin, in a moderate oven thirty to forty minutes.

Potato Flour Sponge Cake.

This cake should be separated with forks, as in the illustration. Never cut sponge cake with a knife.