How to cook beef shank in the oven for optimal tenderness and flavor?

To cook beef shank in the oven for optimal tenderness and flavor, first sear the shank in a hot pan to brown the outside. Then, place the shank in a roasting pan with broth or wine, cover with foil, and cook at a low temperature (around 300F) for several hours until the meat is tender. This slow cooking method helps break down the tough fibers in the shank, resulting in a flavorful and tender dish.