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, turning to coat evenly on all sides.
03 - Scatter the chopped onion and bay leaves over the seasoned beef.
04 - Pour the beef broth around the edges of the slow cooker, avoiding pouring directly over the beef and onion mixture.
05 - Cover and cook on low for 8 hours or on high for 4 to 5 hours, until the beef is very tender and shreds easily with a fork.
06 - Remove and discard the bay leaves. Using two forks, shred the beef directly in the slow cooker and stir to combine with the accumulated juices. Serve hot with tortillas, rice, or your favorite toppings.