Carolina Pulled Pork

Preheat oven to 325° and line a large baking sheet with foil. In a medium bowl, stir together brown sugar, salt, paprika, cumin, oregano, chili powder, and a few cranks of freshly ground black pepper. Rub all over pork shoulder and place on prepared baking sheet. Roast until pork easily comes away from bone when a fork is inserted, 2 1/2 to 3 hours. Let cool slightly before shredding. Meanwhile, make sauce. In a small sauce pan, combine vinegar, ketchup, sugar, garlic, salt, and red pepper flakes. Simmer until slightly thickened, 10 to 15 minutes. Remove from heat and let cool to room temperature. Season as needed with salt and pepper.  Spoon sauce over shredded pork and serve.