Clean or peel and wash the soup vegetables. Cut carrots into slices, leek into rings, celery and parsley root into cubes. Peel, wash and dice the potatoes
Bring the stock to the boil and cook the potatoes, celery, carrots and parsley root for about 15 minutes
Wash the lemon hot, grate dry, peel the rind thinly with a zest ripper and chop. Wash parsley, shake dry, pluck leaves from the stalks and chop finely. Remove 4 tablespoons of stock. Mix parsley, lemon peel, broth and oil, season with salt and pepper
Add leek to the soup about 5 minutes before the end of the cooking time. Press the meat as dumplings from the skin directly into the soup. Season soup with salt, pepper and nutmeg. Serve the soup and add Gremolata