How to Make It
Combine pork, Coca Cola, onion, garlic, salt, chili powder, cumin, and oregano in a 5-to 6-quart slow cooker and stir to combine. Cook on high, covered, until meat is tender and shreds easily, 5 to 6 hours.
Transfer pork and liquid to a large saucepan and bring to a vigorous simmer over high. Cook, breaking up meat with a spoon, until liquid is reduced and coats meat, 15 to 18 minutes. Serve pork in warm tortillas with fixings on the side.