01 - Pat beef cheeks dry with paper towels and season thoroughly with salt and pepper on all sides.
02 - Heat vegetable oil in a Dutch oven over medium-high heat. Sear beef cheeks until deeply browned on all sides, approximately 3–4 minutes per side. Remove meat and set aside.
03 - In the same pot, add diced onion and sauté for 5 minutes until translucent and softened. Add minced garlic and cook for 1 minute until fragrant.
04 - Stir in chipotle peppers, tomato paste, cumin, smoked paprika, and oregano. Cook for 1–2 minutes, stirring constantly to toast spices and bloom flavors.
05 - Return seared beef cheeks to the pot. Pour in beef broth, fresh lime juice, and add bay leaf. Bring liquid to a simmer, then cover tightly and reduce heat to low.
06 - Braise covered for 3 to 3.5 hours. Check occasionally to ensure gentle simmer. Beef is done when fork-tender and easily shredded.
07 - Remove beef cheeks from braising liquid. Shred meat using two forks, discarding any excess fat or connective tissue. Toss shredded beef with a few spoonfuls of braising liquid to moisten.
08 - Heat corn tortillas in a dry skillet over medium heat for 30 seconds per side, or char directly over an open flame until pliable and slightly blistered.
09 - Fill warm tortillas with shredded beef. Top with finely diced white onion, fresh cilantro, salsa verde, and a squeeze of fresh lime wedge. Serve immediately.