In English butchery, shin refers to the cut of beef taken from the front leg of the animal, specifically the section below the knee. This area is heavily exercised, meaning the meat from the shin contains a high proportion of connective tissue, which results in a tough texture if cooked quickly.
However, when prepared correctly, shin can offer a depth of flavor and tenderness that few other cuts can match. Shin is dense and fibrous, riddled with collagen-rich connective tissues. While this makes the meat tough in its raw state, the collagen breaks down into gelatin during long cooking processes, imparting a rich, silky texture to the dish.
The key to unlocking the shin's potential is patience. Slow-cooking, braising, or stewing at a low temperature allows the collagen to melt into the surrounding liquid, creating a dish with an unctuously thick sauce. Additionally, the meat itself becomes incredibly tender, having absorbed all the flavors from the cooking liquid.