Preheat your smoker grill to 275°.

While smoker is warming up, cut the pork belly into 1-inch cubes.

Season the pork belly cubes with your preferred rub. Be sure to coat all six sides. Reserve a bit of seasoning for a later step.

If desired, use a grill-safe wire rack to transport your pork belly cubes to the grill. Arrange cubes on the rack, leaving space between each, and place entire rack directly on the grill grate. Alternately, you can just place the pork directly on the grill grate.

Allow pork to smoke for 3 hours, until the internal temperature of the pork is about 195°.

Hourly during cooking, spray pork with some of the apple juice or water in your spray bottle. This helps the meat retain moisture during the cook.

Once the pork reaches 195°, transfer to the pan or dish.

Sprinkle with additional seasoning and pour BBQ sauce over top. Stir to combine and coat all pieces.

Spread pork evenly in the pan and top with a few pats of butter throughout.

Return pan to smoker and cook for one additional hour.

Serve and enjoy!