Instructions:
- Mix dry rub ingredients. Coat pork shoulder all over. Refrigerate overnight if possible.
- Place pork in a slow cooker. Add BBQ sauce. Cook on LOW for 8 hours or HIGH for 5 hours.
- Remove pork and shred with two forks. Mix with cooking juices and extra BBQ sauce.
- Make coleslaw: shred cabbage and carrots, mix with mayo and vinegar. Season well.
- Toast brioche buns.
- Pile pulled pork onto buns, top with coleslaw and extra BBQ sauce. Serve immediately.