– 4-5 lb pork shoulder or butt roast not pork loin –2 tablespoons tomato paste –2 tablespoons chipotles in adobo sauce –1 tablespoon chili powder –2 teaspoon paprika –4-5 cloves of garlic –¼ small red onion –1 cup packed light brown sugar –½ teaspoon salt –¼ teaspoon black pepper –Juice of 1 lime 2-3 tablespoons –¼ cup rice wine vinegar –1 cup chicken broth –Cilantro for garnish (optional) –Limes for serving