Wash potatoes thoroughly and boil in boiling water for 20-25 minutes. Peel and finely chop the onion. Heat the stock, add the onion. Drain potatoes, rinse and peel. Add stock and vinegar to the potatoes.
Clean, wash and chop the radishes. Clean and wash the chives and cut them into small rolls. Mix yoghurt and mayonnaise, season with salt, pepper and sugar. Fold the radishes, chives and yoghurt sauce into the potatoes and allow to soak. Clean, wash and cut the salad into strips. Wash cutlets, dab dry and cut into pieces. Season with salt and pepper. Beat the egg in a deep plate and put breadcrumbs on a plate. Turn meat first in egg, then in breadcrumbs. Heat oil in a pan.
Season with salt and pepper. Beat the egg in a deep plate and put breadcrumbs on a plate. Turn meat first in egg, then in breadcrumbs. Heat oil in a pan. Fry the meat for 2-3 minutes on each side. Fold the romaine lettuce into the potato salad and season to taste again. Arrange potato salad and schnitzel on plates
30 minutes waiting time