½ cupful of butter, 1 cupful of sugar, white of 1 egg, a little vanilla, 2 tablespoonsful of wine or brandy, ½ wineglass of boiling water. Beat the butter and sugar for about 15 minutes, then add the flavoring. Just before sending to the table, add the egg beaten to a froth and stir in the boiling water, beating it to a foam, or it may be flavored with brandy or wine, without the vanilla, or use one lemon, only, all the juice and half the grated peel, and one teaspoonful of grated nutmeg, leaving out all the wine and brandy.