A hanger steak is a cut of beef steak which is sai to "hang" from the diaphragm of the steer. (Anatomically the diaphragm is one muscle, but it is commonly cut into two separate cuts of meat: the "hanger steak" traditionally considered more flavorful due to its proximity to the kidneys, and the outer skirt steak which is composed of tougher muscle within the diaphragm.) The hanger is attached to the last rib and the spine near the kidneys. It resembles flank steak, and is a vaguely V-shaped pair of muscles with a long, inedible membrane down the middle. The hanger steak is not really tender, but has a lot of flavor, and is best marinated and cooked quickly over high heat (grilled or broiled) and served rare or medium-rare, to avoid toughness. Chefs with experience preparing beef kidneys report that the hanger steak's aroma preserves a trace of kidney.