The flank is used mostly for grinding, except for the long and flat flank steak, best known for use in London broil, and the inside skirt steak, also used for fajitas. Flank steaks were once one of the most affordable steaks, because they are substantially tougher than the more desirable loin and rib steaks. Many modern recipes for flank steak use marinades or moist cooking methods, such as braising, to improve the tenderness and flavor. This, combined with a new interest in these cuts' natural leanness, has increased the price of the flank steak.