Wash potatoes thoroughly and cook covered for about 20 minutes. Quench, peel and let cool down a little
Clean, wash and cut the spring onions into rings. Clean, wash and thinly slice the cucumber
Bring 200 ml water, stock, vinegar and spring onions to the boil. Season with mustard, salt, pepper and sugar. Cut the potatoes into slices. Mix with cucumber and the hot broth. Leave to stand for at least 30 minutes
Wash the cutlets and pat dry. Whisk eggs with salt and pepper. Turn escalopes one after the other in flour, egg and breadcrumbs. Tap a little bit
Fry in hot oil for about 3 minutes on each side. Season the potato salad to taste and arrange everything. Garnish with lemon