The recipe for this beef bouillon is interesting because the meat is soaked in brine before baking. This helps make the meat juicier and more tender. The meat is cooked in a roasting sleeve, but aluminum foil can also be used. The bouillon is best made with boneless, lean meat with a small amount of fat. I used chuck roast, which has a non-uniform structure and streaks of fat. The meat should be unfrozen but not too warm. The dish turns out delicious not only because of the meat but also because of the braised onion in meat juice. This dish will be the highlight of your holiday table!