Soften the dried chilies in hot water for 15 minutes.
Blend the soaked chilies, the vinegar, garlic, cumin, cloves, oregano and tomato smooth with an immersion blender - this is the adobo.
Coat the meat thoroughly with the adobo and refrigerate for 2-24 hours (if you have time).
Cover the meat with the bay leaves and enough water to submerge it, then simmer covered over low heat (or in a 150 degree oven) for 2.5-3 hours, until it falls apart.
Take out the meat, shred it with a fork, strain the remaining juices (consommé) and season with salt.
Serve the meat with the consommé, finely chopped onion, cilantro, lime and tortillas - as tacos or for dipping.
Source: Wikipedia – Birria (CC BY-SA 4.0), adapted and translated. This page is also licensed CC BY-SA 4.0.