How to Tenderize London Broil

London broil is actually a way of cooking beef, in which flank steak is marinated before broiling or grilling, and cut it into thin slices. However, it is colloquially used to refer to a cut portion of meat derived from the flank of a cow. Since cutting is made along the grain, and the muscle fibers are long, this flank steak is a tough, yet flavorful meat. Hence, the raw meat cut is first