Barbecued Boston Butt or Pork Shoulder pork shoulder or Boston butt, about 4 to 7 pounds, bone-in or boneless 1/4 cup of water salt and pepper lightly barbecue sauce Place the meat in the slow cooker with water, salt and pepper. Cover and cook on HIGH for 1 hour. Turn to LOW rand cook 7 to 9 hours longer, until very tender. Remove roast and discard fat and juices. Chop or shred the pork. Return to slow cooker. Mix a little barbecue sauce into the meat for flavor. Cook for about 1 hour longer, until hot. Serve on warm split sandwich buns with coleslaw and extra barbecue sauce on the side.