Slow Cooked Pulled Pork

1 med chopped onions
½ cup ketchup
1/3 cup vinegar
¼ cup packed brown sugar
¼ cup tomato paste
2 T. paprika
2 T. Worchstershire sauce
2 T. mustard
1 ½ t. salt
1 1/3 t. pepper
4 lbs boneless pork roast – cut in 4 pieces
In crock pot stir onion, ketchup, vinegar, etc. Stir till combined. Add pork and turn to coat well with sauce. Cook on low 8-10 hours. Transfer pork to large bowl turn cooker to high, cover and heat sauce to thicken. With 2 forks shred pork and put back in cooker and toss with sauce. Cover and heat through. Spoon onto buns. Makes 12 servings
Grandma Moss