In a small bowl, combine the BBQ sauce and bourbon. Mix well.
In a food processor, combine the kosher salt, white pepper, onion powder, paprika, garlic powder, dark brown sugar, smoked paprika, and bacon. Pulse until completely smooth.
Put the chicken pieces in a bowl and then rub with the bacon paste. Once well-coated, thread the chicken pieces onto skewers.
Place the kebabs on the preheated grill. Cook for about 5 minutes per side, or until nearly cooked through.
Brush the kebabs with the bourbon barbecue sauce and cook for an additional minute on each side.