Spray crockpot with cooking spray. Slice onions thin, and lay in the bottom.
Lay your roast on top of the onions.
Mix all of the other ingredients, mix well, and pour over the meat. Cover- high 3-4 hours or low 6-8. Meat is done when it can be shredded with a fork. Let cool overnight, Remove the fat, shred, and add to the juice. Reheat, serve on buns with a good white cheese of your liking. Serve with juice. Wonderful flavor! Enjoy