Festive Sponge

Recipe for orange sponge cake:

Beat whites of three eggs stiff.
Add 3 yolks, one at a time, beating constantly.
Add - gradually - one cup of sugar, grated rind of one orange and one-third cup of orange juice.
Fold in one cup flour, sifted with one teaspoon baking powder and 1/4 teaspoon salt.

Turn into buttered shallow pan, and bake in a moderate over - 25 or 20 minutes.

Found in "St. Nicholas' Travels" by Hertha Pauli. Published by Houghton Mifflin, 1945.

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