A good beef broth is the basis for many soups and stews, as well as a marinade for grilled and roasted beef. To marinate meat using beef broth, simply soak the meat in the broth for several hours or overnight. Remove the meat from the marinade and cook. If you want to use the marinade in a gravy, boil it for 2 to 3 minutes to kill any bacteria that might remain from the meat.
Mix the beef broth, soy sauce, garlic and liquid smoke in a glass dish or zip-lock bag. Add the meat, making sure the marinade covers it completely.
Cover the dish with plastic wrap and place it or the zip-lock bag in the refrigerator for at least two hours, but no more than 24 hours. Remove the meat from the marinade and grill or roast it, as desired.
Cover the meat loosely with aluminum foil and allow it to rest for 10 minutes before serving. Allowing it to rest results in juicier meat and a more flavorful taste.