Clean and wash soup greens, carrots and leek. Peel onion. Cut leek, possibly parsley root and carrots into slices. Dice celery and onion
Wash and dab the knuckles, season with salt and pepper. Heat the oil in a frying pan. Brown the knuckles all around. Fry onion, possibly parsley root, half carrots and celery. Stir in tomato paste and thyme and sauté briefly
Add 1/2 l water and broth, bring to the boil. Cover and stew for 1 1/2-2 hours. Peel, wash and coarsely dice the potatoes. Add the remaining vegetables to the knuckles 30 minutes before the end of the cooking time and braise with them
Peel the garlic. Wash the parsley. Chop both. Wash and dry the lemon. Grate the peel. Mix with garlic and parsley. Flavour vegetables. Arrange everything and sprinkle with the parsley mixture