Flank steak comes from the bottom abdominal area of the cow. It has a lot of hard fibres and is quite lean. When it comes to flavour, flank steak has a very powerful beef flavour and it can be a little tough to eat so you should slice it very thinly. The best way to cook it is through high heat and quick cooking.  On the other hand, skirt steak comes from the diaphragm muscles of the cow and has a lot of tough fibres, too. It has a more intense beef flavour and is much tougher than flank steak. If you want to add a tender texture to it, you must cook it rare or medium-rare. Searing, grilling, or stir frying over high temperature are just some of the best ways to cook a skirt flank.