Slow Cooker Pulled Pork

1 boneless pork loin or pork roast (about 3 pounds)
2-3 tablespoons of your favorite pork rub
(I like Stubb's and Emeril's)
1/2 cup ketchup
1/2 cup apple cider vinegar
1/2 cup brown sugar

In a slow cooker, add the pork.  Stir together other ingredients and pour
over pork. Cook on low for 8 hours or high for 4 hours.
Take pork out of crock pot and shred with 2 forks. Place meat
back in slow cooker and stir.  Serve on rolls or as a main dish with sides.

Serves 8-10