Question about Malacatin in Madrid!
I live just a few blocks from Malacatín but I've only been for the full cocido madrileño (the "degustación"--the quantity of which is unreal, with enough different animals to populate a small farm)--it's the kind of thing a big group of friends/family gets together to do once a year in an orgy-like multihour extravaganza (usually when the weather gets a bit cold). I've also stood at the bar and just had the "sopa de cocido" or "caldo," which is actually my favorite part, because all of the flavor of the multiple beasts gets condensed into the broth.
I think their hours are normal, which means lunch from 1:30-4:30ish. It's closed on Sundays.