01 - Preheat the grill or barbecue to medium heat.
02 - In a mixing bowl, whisk together the tomato ketchup, apple cider vinegar, brown sugar, Worcestershire sauce, Dijon mustard, smoked paprika, garlic powder, and ground black pepper until smooth.
03 - Arrange the sausages on the grill and cook for 10 to 12 minutes, turning frequently, until evenly browned and thoroughly heated.
04 - During the final 5 minutes of grilling, brush the sausages liberally with the prepared barbecue sauce, rotating to coat and caramelize all sides.
05 - Serve hot in buns if desired, with extra barbecue sauce and preferred toppings such as sliced onions, pickles, or coleslaw.