1 (3 pound) boneless beef chuck roast1 (12 fluid ounce) can frozen apple juice concentrate, thawed1 dash soy sauce3 cloves garlic, chopped1 (1 ounce) envelope dry onion soup mix3 baking potatoes, peeled and diced2 carrots, peeled and slicedPreheat the oven to 325 degrees F (165 degrees C).Place the roast in a roasting pan or large casserole dish. Fill the dish with about ½ inch of water, then stir in the apple juice concentrate. Sprinkle soy sauce over the top of the roast. Make several small slits in the roast and stuff pieces of garlic into them. Season the roast with onion soup mix. Cover with aluminum foil or a lid.Bake for 2 hours in the preheated oven, then remove from the oven and add the carrots and potatoes. Cover again, and continue to cook for an additional 2 hours, or until roast is fork tender.