Instant Pot Big Bold Beef Carnitas

Using the sauté setting on the Instant Pot, add oil, salt, cumin, paprika, chili powder, oregano, and chipotle sauce; when this mixture is nicely hot, add the beef chunks. Brown the beef in batches, removing it to a plate as you work; reserve.
Once all the beef is browned, return it to the Instat pot; add the onion, garlic, cinnamon stick, orange zest, and juices. Lock the Instant Pot lid securly into place. Using the high pressure setting, set the timer for 45-50 minutes bringing the Instant Pot to full pressure. When the timer sounds, use a full natural release to allow the beef to rest and fully relax.
Remove Instant Pot lid; transfer the beef to a large cutting board, shredding the beef apart. Add shredded beef to a preheated, oiled cast iron skillet set over high heat. Sear the beef over high heat just until it gets a good “crisp” on the outside, watching carefully so the beef doesn’t burn, adding cooking liquid from the Instant Pot, a little at a time, as needed.
Serve the shredded beef inside warm corn or flour tortillas, topped with salsa fresca, sour cream, cilantro, and shredded cheese, as desired.