Trim fat from meat. Sprinkle meat lightly with salt and pepper. In a 4- to 6-quart Dutch oven brown meat on all sides in hot oil for 5 minutes, turning to brown evenly. Drain off fat. Carefully pour broth over meat. Add onion, marjoram, thyme, and garlic. Bake, covered, in a 325 degree F oven for 2 hours.
Add vegetables. Cover and bake for 30 to 40 minutes more or until tender. Transfer meat and vegetables to a serving platter; reserve cooking liquid in Dutch oven. Cover platter with foil to keep warm.
For gravy, strain juices into a glass measuring cup. Skim fat from juices; return 1-1/4 cups of the juices to Dutch oven (discard remaining juices). In a small bowl stir together the cold water and cornstarch. Stir into juices in Dutch oven. Cook and stir until thickened and bubbly. Cook and stir for 2 minutes more. Season to taste with salt and pepper. Slice meat. Spoon some of the gravy over meat and vegetables. Pass remaining gravy. Makes 8 servings.