Cheese and eggs are grated and onions cut into finely. Peel the apples, cut to the core and cut into cubes - just before putting them in layers to not turn black. In a suitable dish lining layer of eggs on it - a layer of cheese on top - a layer of onions and apples layer. Smeared with mayonnaise and again repeat - eggs, cheese, onions, apples, cheese, and finally - mayonnaise. Decorate with grated in small pieces grater yolks. This salad should stand for 1-2 hours before being served.