4 tablespoon (1/2 stick) unsalted butter 1 large yellow onion, chopped 4 cloves garlic, chopped 1 cup ketchup 3 tablespoon tomato paste 1 12 ounce can Dr. Pepper ½ cup cider vinegar ⅓ cup Worcestershire sauce ½ cup packed dark brown sugar 2 teaspoon ancho or New Mexican chili powder 1 teaspoon fine-ground white pepper 1 teaspoon kosher salt
Hot & Sticky Barbecue Rub
½ cup packed dark brown sugar 1 ½ teaspoon coarsely ground pepper 2 tablespoon sugar 1 tablespoon molasses powder, optional 1 tablespoon kosher salt, preferably Morton ½ teaspoon hot smoked Spanish paprika 1 teaspoon chipotle chile powder ½ teaspoon cayenne pepper
