Clear liver from the skin and duct slice of 80 grams. Put apple slices in water with lemon juice. Cut the peeled onion into strips, sprinkle with flour and fry to a crisp and browned in butter, put on a paper towel. Fry in the same oil, apple slices, sprinkle with sugar, give him a little zakaramelizovatsya. In another pan fry on both sides in flour breaded pieces of liver. Serve the liver with a strained butter, onion, fries and apple slices.