01 - Pat beef cheeks completely 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 beef cheeks until deeply browned on all sides, approximately 3–4 minutes per side. Remove meat and set aside.
03 - Add diced onion to the same pot and sauté for 5 minutes until translucent. Add minced garlic and continue cooking for 1 minute until fragrant.
04 - Stir in chipotle peppers, tomato paste, cumin, smoked paprika, and oregano. Cook for 1–2 minutes, stirring constantly, until spices are fragrant and paste begins to darken.
05 - Return beef cheeks to the pot. Pour in beef broth, lime juice, and add bay leaf. Bring to a simmer, cover tightly, and reduce heat to low. Braise for 3–3.5 hours until meat is fork-tender and shreds easily.
06 - Transfer beef cheeks to a cutting board. Using two forks, shred meat, discarding any excess fat or connective tissue. Return shredded meat to the pot and toss with a few ladles of braising liquid to moisten.
07 - Heat corn tortillas in a dry skillet over medium heat for 15–20 seconds per side, or char directly over an open flame until pliable and lightly blistered.
08 - Fill warm tortillas with shredded beef. Top generously with diced white onion, fresh cilantro, salsa verde, and serve with lime wedges for squeezing.