Peel and finely dice the onion. Wash and clean the savoy cabbage and cut into strips. Peel the carrots and potatoes and also dice them. Wash and slice the leek.
Put the oil in a saucepan and fry the onions with the vegetables in them. Add the pearl barley and pour the vegetable stock on top. Season with iodized salt, pepper, marjoram and caraway seeds and cook the stew for 25-30 minutes.