Chicken liver in tomato juice with a mashed potatoes

Liver to fry up to half-readiness, to add an onions feathers, champignons slices, tomato juice, wine, to evaporate up to a dense consistence, to add a butter, cut a parsley, tomatoes large slice, to mix. In the center of a plate to lay out mashed potatoes through the square form, around to lay out a chicken liver.