Peel and finely dice the onions and garlic. Wash the lamb and cut into cubes. Heat the oil in a large pot and braise the meat while turning it. Add onions and garlic and braise briefly. Stir in the barley and season with salt and pepper. Pour on the stock, add bay leaf and cloves and bring to the boil.
Simmer covered for about 50 minutes. In the meantime clean, wash and drain the vegetables. Dice celery and carrots, cut leek into slices. After approx. 25 minutes add vegetables to the soup and bring to the boil. Season soup with salt and pepper