Bring roast to room temp for about an hour.
Preheat oven to 250.
With a knife, stab roast all over.
Mix together liquid smoke and 1 tablespoon apple cider vinegar. Rub all sides of roast with liquid mixture - massaging into holes. Use all of liquid mixture. Let roast rest for 5 minutes.
Mix spices together. Rub down roast with spice mixture, rub all sides and into holes. Use all of spice rub.
Place pork roast into small roasting pan. Pour 1/2 cup apple cider vinegar into pan. Bake covered, basting a few times, at 250 for 6-8 hrs or until roast is tender and pulls apart easily with fork. Remove from oven.
Heat oven to broil.
Shred roast with two forks. Discard any large chunks of fat, small pieces of fat should stay in.
Broil roast for 10- 15 minutes or until it browns enough to your liking. I stir the meat a few times to distribute all the juices so nothing dries out. Pay attention to roast making sure nothing burns.
Serve on rolls and enjoy : )