1 thick loaf of sponge, or other plain cake.

2 kinds of jelly - tart and sweet. Whisked whites of 5 eggs.

1 heaping cup powdered sugar - or enough to make stiff icing.

Juice of 1 lemon whipped into the icing.

Cut the cake horizontally into five or six slices of uniform width. Spread each slice with jelly - first the tart, then the sweet, and fit them into their former places. Ice thickly all over, so as to leave no sign of the slices; set in a slow oven for a few minutes to harden; then, in a sunny window.

This is an easy way of making a showy cake out of a plain one.