Shin is an inexpensive cut of meat, which is big on flavour, and is full of gelatinous sinew which cooks down to make the most excellent gravy.
Cooking with Beer
I cannot state how simple my recipe is just beer, flour, and seasoning. No eggs, baking powder, turmeric for colour it could not be easier or tastier. Experiment with some local ales and lagers until you find your own favourite.
There is something about the combination of the pungent braised chorizo and aromatic, slightly bitter, beer with the cooking liquor of the mussels which creates a wonderful broth