01 - Preheat the oven to 275°F.
02 - Pat the pork shoulder dry with paper towels.
03 - In a small bowl, blend kosher salt, black pepper, smoked paprika, garlic powder, onion powder, thyme, and rosemary.
04 - Rub olive oil evenly over the pork, then coat with the seasoning mix, pressing into the meat.
05 - Place chopped onion and smashed garlic in the bottom of a large roasting pan or Dutch oven. Set the pork shoulder atop, fat side up.
06 - Pour the chicken broth around but not over the pork.
07 - Cover tightly with a lid or foil and roast for 4 hours until the pork is fork-tender and pulls apart easily.
08 - Uncover the pork for the final 30 minutes of cooking to crisp the exterior.
09 - Allow the pork to rest for 15 minutes before shredding or slicing. Serve with pan juices.