Flank steak, also known as London broil, isn't the most tender cut of beef, but it is one of the most flavorful. The key to getting a tender flank steak is to let the meat marinate for a good, long time—in this case, in a mixture of red wine, Worcestershire sauce, garlic, various spices, and fresh rosemary—and then carve it across the grain into thin slices before serving.

Flank steak, also known as London broil, isn't the most tender cut of beef, but it is one of the most flavorful. The key to getting a tender flank steak is to let the meat marinate for a good, long time—in this case, in a mixture of red wine, Worcestershire sauce, garlic, various spices, and fresh rosemary—and then carve it across the grain into thin slices before serving.