Render the bacon and drain on a paper towels. In a small bowl combine 1/2 teaspoon of the salt, 1/2 teaspoon of the cayenne, 1/2 teaspoon of the black pepper, thyme, garlic, and 2 bay leaves, crumbled. Add the bacon to the spice mixture. With a sharp, pointed knife, make slits in the beef round, about 1-inch apart, being careful not to cut all the way through. Insert 2 to 3 pieces of the seasoned bacon into each hole. Season the beef with 1/2 teaspoon of the salt, 1/2 teaspoon of the cayenne, and 1/2 teaspoon of the black pepper. Heat the oil in a large heavy pot over medium-high heat and brown the beef for 4 to 5 minutes on each side. Remove the beef from the pot. Add 2 cups of the onions, carrots, and turnips. Make a bed of the vegetables of the bottom of the pot. Lay the beef on top and cook for 5 to 6 minutes, or until the vegetables are slightly wilted. Add 2 quarts of the water, or enough to cover the beef. Add 1/4 cup of the sherry and bring to a boil. Reduce to medium, cover and simmer, turning the beef several times, for about 3 hours, or until the meat is tender.

Season the veal rump with 1 teaspoon of the salt, 1/4 teaspoon of the cayenne, and 1/4 teaspoon of the black pepper. Put the veal in a large pot and add about 4 quarts of the water, or enough to cover the veal. Add the remaining 2 bay leaves, the garlic cloves, the remaining 1 cup onions, and the remaining 1/4 cup sherry and bring to a boil over medium-high heat. Reduce heat, cover, and simmer turning the veal several times, for about 3 hours or until tender. Remove the veal from the pot and skim off any fat that has risen to the surface. Remove the bay leaves. Pour off 1 cup of the broth and cool in the refrigerator for about 1 hour. Remove any fat or gristle from the veal. Shred the meat. Remove the beef from the pot. With a slotted spoon, remove the vegetables from the beef broth. Set aside. Discard the bay leaves. Skim off any fat that has risen to the surface. Combine 8 cups of the beef broth with the shredded veal and season with the remaining 1 1/2 teaspoons salt, remaining 1/2 teaspoon cayenne, and remaining 1/2 teaspoon black pepper. Add the gelatin to the cool veal stock. Whisk to dissolve the gelatin and let stand for 1 minute. Add this mixture to the beef stock and veal mixture and stir to combine. Lay 3 cups of the cooked vegetables in the bottom of a bowl large enough to accommodate the beef. Place the beef on top of the vegetables. Pour the beef broth and veal mixture over the beef. Cover and refrigerate for 8 hours, or until the gelatin sets. To serve, invert the bowl very carefully onto a large serving platter and unmold. The mold can be sliced and served on toasted slices of French bread with Creole mustard