Recipe: Plain Sponge Cake

Beat the yolks of four eggs together with two cups of fine powdered sugar. Stir in gradually one cup of sifted flour and the whites of four eggs beaten to a stiff froth, then a cup of sifted flour in which two teaspoonfuls of baking powder have been stirred, and, lastly, a scant teacupful of boiling water, stirred in a little at a time. Flavor, add salt and, however thin the mixture may seem, do not add any more flour. Bake in shallow tins.

The Whitehouse Cookbook, by Mrs. F.L. Gillette (Year 1887)