TAKE the whites of ten eggs, put to them three spoonsful of rose or orange-flower water, and beat them an hour with a whisk. Then put in a pound of beaten and sifted sugar, and grate into it the rind of a lemon. When it is well mixed put in the juice of half a lemon, and the yolks of ten eggs beat smooth. Just before you put it into the oven, stir in three quarters of a pound of flour, butter your pan, put it into a moderate oven, and an hour will bake it.