Worcestershire sauce contains many of the ingredients that make for a great tenderizing marinade. Worcestershire sauce has vinegar for acid, sugar to add a bit of sweetness, and because it's concentrated, the marinade can go deep into the flesh of the steak. Simply place the mock tender steaks in a plastic bag and pour 1/2 cup of Worcestershire sauce mixed with 1/4 cup of water over the steaks. Marinate in the refrigerator overnight and grill, fry, or simmer in a crockpot. Serve with your favorite side dishes.