2 tablespoons bacon grease
½ cup minced onion
½ teaspoon ground cumin
¼ teaspoon cayenne pepper
½ cup cider vinegar
1 cup beef stock
1 cup ketchup
1 tablespoon hot sauce
½ teaspoon salt
½ teaspoon pepper
Melt the bacon grease in a skillet over medium heat. Add the onion, cumin, and cayenne and continue to cook until the onion is softened, about 3 minutes. Add the vinegar and stock and increase the heat to high to bring to a boil. Stir in the ketchup and hot sauce, then reduce the heat to medium-low, add the salt and black pepper, and simmer uncovered for 30 minutes.