Favorite Sponge Cake
Eggs, 6.
Granulated sugar, 1 cup.
Flour, 1 scant cup.
Lemon juice, 2 teaspoonfuls.
Sift the flour and sugar four or five times. Beat the whites of the egg to a stiff froth, adding the lemon juice. When half beaten, fold in carefully in regular order the sugar, well-beaten yolks of eggs, and the flour. Bake in a moderate oven.