Roast the oxtail on 200°c for 20-25 minutes until golden brown
Add 4 liters of water and the roasted oxtail to a medium size pot and bring to a simmer. Cook for 2 hours whilst slowly removing fat and foam
Clean, wash and chop the onion, celery, leeks, garlic and thyme
add to the soup and Cook for 30 min un till the vegetables are cooked trough. Strain the liquid in a clean pot and separate the oxtail from the rest
Clean the oxtail meat carefully of the bone removing excess fat and tough bits
Add the 750ml veal jus to the soup and reduce this to about 1.5 litres or till a strong and fragrant broth is achieved. Keep skimming the fat and foam whilst reducing
Peel and cut the potatoes in cubes
wash and cut the black cabbage of the stem and in squares
Add the potato cubes and oxtail meat to the broth. Cook for 15 minutes
add the black cabbage and cook for another 5 minutes till the cabbage is just cooked