01 - Pat beef cheeks dry with paper towels and season generously with salt and pepper on all sides.
02 - Heat vegetable oil in a Dutch oven over medium-high heat. Sear the beef cheeks until deeply browned on all sides, about 3–4 minutes per side. Remove meat and set aside on a plate.
03 - Add diced onion to the same pot 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 dried oregano. Cook for 1–2 minutes, stirring constantly to toast the spices and release their oils.
05 - Return the seared beef cheeks to the pot. Pour in beef broth, lime juice, and add the bay leaf. Bring to a gentle simmer, then cover with a tight-fitting lid and reduce heat to low.
06 - Braise for 3 to 3.5 hours, checking occasionally to maintain a gentle simmer. The beef is ready when it offers no resistance and easily pulls apart with a fork.
07 - Remove beef cheeks from the cooking liquid and transfer to a cutting board. Shred using two forks, discarding any large pieces of excess fat. Return shredded meat to the pot and toss 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 warm directly over an open flame until pliable and lightly charred. Keep warm in a clean kitchen towel.
09 - Fill each warm tortilla with a generous portion of shredded beef. Top with finely diced white onion, fresh cilantro, and salsa verde. Serve with lime wedges for squeezing over the top.