Remove the outer leaves from the cabbage. Wash the cabbage, cut into slices and cut out the hard stalk. Cut or slice the cabbage into thin strips. Mix the cabbage with 1/2 teaspoon salt in a bowl, knead thoroughly and leave to stand for about 30 minutes.
Season vinegar with pepper, sugar and possibly a little salt, fold in 3 tablespoons of oil. Heat 1 tablespoon of oil in a large pot. Sauté the red cabbage for about 10 minutes while turning, remove from heat. Add the vinaigrette to the cabbage and let it steep for about 30 minutes.
Cut bread into 9-10 thicker slices. Heat 2-3 tablespoons of oil in a frying pan, fry slices of bread in it in portions on both sides until brown, season with a little salt, remove
Slicing cheese. Clean and wash spring onions, cut them into rings and add them to the salad. Season salad again, spread on the bread slices, arrange on a plate, sprinkle with parmesan slices
Waiting time approx. 45 minutes