Grate the yolks and whites separately.
Grate the cheese on a coarse grater.
Place the saury in a bowl and mash it with a fork.
Finely chop the onion and dill.
Now assemble the salad. To do this, take a special form, a flat salad bowl or a baking dish. Put grated egg white on the bottom.
Place the following layers: cheese, saury and onions.
Spread a layer of mayonnaise over the onion.
Grate the butter on a fine or coarse grater and spread it on top of the mayonnaise in an even layer.
Place grated egg yolk as the top layer. Remove the salad form.
Sprinkle the finished salad with chopped dill.