Spicy Pulled Pork Pushover

Name: Spicy Pulled Pork Pushover
Ingredients: 1 (12 ounce) can tomato paste; 0.5 cup apple cider vinegar; 2 tablespoons dried onion flakes; 2 tablespoons prepared yellow mustard; 2 tablespoons molasses; 4 cloves garlic, minced; 1 tablespoon olive oil; 2 teaspoons liquid hickory smoke flavoring; 7 tablespoons brown sugar; 2 tablespoons kosher salt; 1 tablespoon ground cumin; 2 teaspoons ground dried chipotle pepper; 2 teaspoons hot smoked paprika; 1 teaspoon ground black pepper; 1 teaspoon garlic powder; 1 teaspoon mustard powder (such as Keen's®); 1 teaspoon cayenne pepper; 3.75 pounds pork shoulder roast