Slice onion and garlic and layer in the bottom of the crockpot. Open and pat pork tenderloin until dry. Rub Bone Suckin dry rub all over tenderloin. Place tenderloin in crockpot on top of onion and garlic. Pour 1 cup of chicken broth on top. Place lid on crockpot and cook on low 10 hours.
Once done, pull out tenderloin and put on cutting board, take two forks and shred. Drain juice from crockpot but leave the onion in if desired. Put shredded pork back into crockpot and add desired amount of BBQ sauce.
Slice King Hawaiian dinner rolls and fill.
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