Wash the knuckle of pork. Cover with water and cook for about 2 1/4 hours. In the meantime peel, wash and chop the potatoes. Clean, wash, peel and chop the soup greens. Drain the pumpkin.
Cook the potatoes, soup vegetables and half of the pumpkin in 1 litre of the knuckle of pork stock for about 15 minutes. Then put 1/4 of it aside and puree the rest in the stock. Add cream and bring to the boil.
Season with salt, pepper and nutmeg. Remove the knuckle of pork from the bone and cut into small pieces. Wash the chives, cut into small pieces, the rest of the pumpkin into small pieces. Warm all ingredients in the soup, season again and serve.