Wash the meat and let it drip off. Peel and halve the onion and fry in a pan without fat for about 5 minutes on the cut surface. Boil up about 3 litres of water, bay leaf, juniper, cloves, salt, onion and peppercorns in a large pot. Add the meat and simmer at medium heat for about 2 1/2 hours
Clean or peel and wash the soup greens. Cut celery into 2-3 pieces. Cut leek and carrots roughly into pieces. Add vegetables to the meat after about 15 minutes. In the meantime, use a skimmer to skim the resulting foam from the broth
Wash the potatoes and cook in plenty of boiling water for about 20 minutes. Peel and wash the carrots. Rinse potatoes under cold water, drain and peel. Cut in half depending on size. Heat clarified butter in a large pan and fry the potatoes for about 15 minutes, turning them over. Season to taste with salt and nutmeg
In the meantime, mix the egg yolk, vinegar and mustard. Season with salt and pepper. Add oil drop by drop while stirring. Wash the herbs, shake dry and, except for a little garnish, chop finely or cut into small rolls. Mix herbs, sour cream, milk and mayonnaise
Remove meat from the stock and keep warm. Pour stock through a sieve into a wide pot. Bring to the boil and cook the carrots for about 10 minutes, drain. Heat butter and honey in a pan and toss carrots. Season with salt and pepper
Cut the meat into slices. Arrange carrots, meat and sauce. Garnish with herbs. Add potatoes. Use broth for other purposes