The day before, gently simmer a small veal bone with a carrot, some leek (only the white one), a slice of celery, a carrot and a few peppercorns for 2 hours. The water should just barely cover the ingredients. Again and again skim off the foam. Let it get cold and degrease. Then reduce to half a liter of stock. Do not use onions for the stock.
Do not salt.
The roast: Cut a carrot, a slice of celery and the white of a leek into fine strips.
Stew for 2 hours with the lid closed at 180 degrees. After one hour of braising time, take the roasting pan out of the oven for a moment, salt the meat, pour in 100 ml of cream and, if necessary, add a little more veal stock. There should be about 1.5 cm of liquid in the roasting pan. Then fry for another hour.
Pass the sauce through a fine sieve, squeezing the vegetables lightly, but not too much. Possibly season the sauce to taste and thicken slightly with cornstarch if you like.
Serve with the glazed vegetable julienne, dumplings or wide noodles.