Wash the meat. Clean, peel and wash soup greens. Cut into pieces. Peel and halve the onion and fry it in a large pot without fat for about 5 minutes on the cut surface until dark.
Add 2 litres of water, bay leaf, cloves, some salt and peppercorns to the pot, bring to the boil. Add soup vegetables and meat. Simmer over medium heat for about 2 hours. In the meantime, skim off any remaining foam with a skimmer.
For the polenta dumplings melt the fat in a pot. Fry the polenta briefly in it. Add 200 ml water and simmer for 5 minutes at low heat, stirring continuously. Remove from heat. Stir in cream cheese and egg.
Season to taste with salt and pepper. Boil up plenty of salted water. Use 2 teaspoons of the mixture to cut off the cams and slide them into the water. Let it simmer for 3-5 minutes in the boiling water.
(If the dumpling falls apart, mix in 1-2 tablespoons of breadcrumbs). Lift out with a skimmer and allow to drain. Wash, clean and chop the sugar snap peas.
Remove the meat from the stock and let it cool down a little. Pour stock through a fine sieve. Heat again and season with salt and sugar. Add mangetout to the hot stock and cook for 4-6 minutes.
Cut the meat into small cubes. Add the meat and dumplings to the bouillon and heat up briefly. Serve garnished with chervil.