Peel and roughly dice the onion. Wash the cured pork. Bring the pork, onion and approx. 1 1⁄2 l water to the boil, cover and simmer for approx. 45 minutes.
Clean the Brussels sprouts, cut the stem ends crosswise. Wash the cabbage and let it drip off. Peel and wash carrots and cut them into sticks. Peel, wash and chop potatoes.
Add the vegetables and potatoes to the cured pork loin after about 15 minutes and cook until done. Remove the cured pork loin with a skimmer. Cut meat from the bone, dice it and put it back into the pot. Continue cooking for about 5 minutes.
Season to taste with salt, pepper and nutmeg.