5 egg whites
1-1/2 c. sugar
1/2 c. water
2/3 c. potato flour
1/3 c. wheat flour
1/2 tsp. cream of tartar
1 tsp. lemon extract
Beat the egg whites until stiff. Cook the sugar and water until the
sirup threads. Add this sirup to the egg whites and beat well. Sift the
potato flour, wheat flour, and cream of tartar three times, and then
fold into the mixture. Add the flavoring, turn into a pan, and bake for
about 40 minutes.
53. SPONGE CAKE WITH POTATO FLOUR.--The accompanying recipe for sponge
cake contains honey for part of the sweetening, both the yolks and the
whites of the eggs, and potato flour. When sugar and wheat flour are
scarce, this is a very good cake to make.