Boil the chicken breast in salted water, cool and cut into strips.
Cut the onion into thin half rings, marinate (vinegar + salt + sugar + wax-boiling water) for half an hour.
Drain the marinade, lightly squeeze the onion and send it to a dish with chicken meat.
Add finely chopped eggs.
Add the sliced cucumbers.
Then sliced tomatoes and herbs. Season with mayonnaise and mix. If necessary, add salt and pepper.