I'm from Mexico, and a very popular dish over there is "Caldo de Res" (Beef broth), and it's made with beef shanks, but I haven't been able to get it where I live, not even in local butcheries.
I have been wondering if there's a good substitue for shanks? I've also tried to look for cow's tail but still no luck.
Some people have recommended prime rib, but the taste and the texture is not the same.
Any help will be greatly appreciated!!