http://cookpad.com/search/%E3%82%B7%E3%83%88%E3%83%AD%E3%83%B3%E3%82%B1%E3%83%BC%E3%82%AD
http://www.cuisineaz.com/recettes/cake-au-citron-44511.aspx
Cream the butter, add sugar gradually, yolks of eggs well beaten, milk, and flour mixed and sifted with baking powder. Beat whites of eggs until stiff, and add to first mixture, then add brandy and citron. Bake in a moderate oven one hour.