01 - Preheat grill or barbecue to medium heat.
02 - Combine tomato ketchup, apple cider vinegar, brown sugar, Worcestershire sauce, Dijon mustard, smoked paprika, garlic powder, and black pepper in a mixing bowl. Whisk thoroughly until smooth.
03 - Arrange sausages on the grill. Cook for 10 to 12 minutes, turning frequently, until evenly browned and fully heated.
04 - During the final 5 minutes of grilling, use a basting brush to coat sausages with barbecue sauce, turning to caramelize on all sides.
05 - Transfer sausages to buns if desired. Serve hot with additional barbecue sauce and selected toppings.