Take one cup of powdered sugar, one-half cup of butter, one cup of
pastry flour, one-quarter of a teaspoon of baking-powder, peel and juice
of one lemon, five or six eggs. Beat sugar with two whole eggs; add
butter, beat until foamy; after that the flour mixed with baking-powder,
lemon and four yolks. Last the stiffly-beaten whites of the eggs. Mix
this well, bake in form in a moderately hot oven.