Rinse the meat thoroughly, put it in a large pot and pour 3 liters of water.
Add the chopped vegetables and cook over very low heat for about 2-2.5 hours.
Pick up scum from time to time with a slotted spoon.
Season with Sen Soy soy sauce and salt and pepper to taste.
Serve with finely chopped carrots, parsley and pre-cooked pasta.