Silver cake

Cream together a cupful of sugar and a half-cupful of butter, and beat into them the whites of four eggs, then a half-cupful of cold water. Sift a pint of flour with a heaping teaspoonful of baking-powder and add this gradually, beating to a light batter. Stir in, at the last, a teaspoonful of rose-water and bake in a loaf. Cover with icing flavored with rose-water.