Cleaning celery. Cut into approx. 8 slices (approx. 1/2 cm thick), peel and rinse briefly. Pre-cook the slices in boiling salted water with lemon juice for about 5 minutes. Drain and let cool down a little
Mix vinegar, salt, pepper and sugar, add 2-3 tablespoons of oil and beat vigorously. Peel onion. Wash, quarter and seed the tomatoes. Dice both finely. Clean and wash lamb's lettuce. Mix prepared salad ingredients and marinade
Cut the cheese into 4 slices. Whisk eggs, season with pepper. Put 1 slice of ham and 1 slice of cheese between 2 slices of celery. Turn first in flour, then in egg and finally in sesame. Press the breadcrumbs well. Heat 2-3 tablespoons of oil in a coated pan. Fry the "Cordon bleu" in it at medium heat for 3-4 minutes on each side. Serve with salad. Served with: mashed potatoes