Stewed Lamb Shanks with Mushrooms and Pasilla Chile Sauce

This dish is all about patience; the chile sauce takes just a few minutes to prepare and can be done while the lamb shanks are browning. But after combining the two with the mushrooms you must wait, sometimes for a few hours, for the shanks to become completely tender. Once that’s done, you can eat the meat with a rice dish (try Arroz a la Mexicana, for example, on page 517), or use it as a filling for tacos. Ideally, you’d use wild mushrooms here—I once made it with chanterelles, and the combination was magical—but fresh shiitakes are also great. Other cuts of meat you can use here: short ribs (which will also take a long time); chunks of lamb or pork shoulder (which will be faster) or beef chuck or brisket; bone-in chicken parts (which will be much quicker), preferably thighs.