Bring 3/4 l water to the boil. In the meantime clean the Brussels sprouts, cut the stem crosswise. Wash the cabbage. Peel and chop the onion. Peel, wash and roughly dice the potatoes. Peel and wash the carrot and cut it into sticks.
Dab smoked pork dry and cut into strips.
Stir the stock into the boiling water. Add prepared ingredients to the stock. Bring everything to the boil, cover and cook for 15-18 minutes. Mash some of the potatoes with a fork at the edge of the pot so that the soup becomes slightly creamy.
Season soup with salt, pepper and Worcester sauce.