01 - In a medium bowl, whisk together the apple cider vinegar, lime juice, chipotle peppers, adobo sauce, garlic, cumin, oregano, smoked paprika, coriander, cloves, salt, and black pepper until well combined.
02 - Place the beef chuck pieces in the slow cooker and pour the marinade over the beef, coating evenly.
03 - Scatter the chopped onion and bay leaves over the coated beef.
04 - Pour the beef broth around the edges of the beef and onion mixture, avoiding pouring directly over the top.
05 - Cover and cook on low for 8 hours or on high for 4 to 5 hours, until the beef is very tender and easily shreds with a fork.
06 - Remove and discard the bay leaves. Shred the beef with two forks directly in the slow cooker and stir to mix with the accumulated juices. Serve hot with tortillas, rice, or your favorite toppings.