Hot-Water Sponge Cake

4 eggs 2 c. flour 1-1/2 c. powdered sugar 1/2 tsp. soda 1-1/4 tsp. cream of tartar 1/4 c. hot water 1 tsp. vanilla

Beat the eggs with a rotary beater until they are thick and lemon-colored. Sift the flour, powdered sugar, soda, and cream of tartar together several times. Sift these into the eggs and continue beating. When all of the dry ingredients have been added, pour in the boiling water, flavor with the vanilla, and pour into a sponge-cake pan and bake.