Seasoned Barbecued Pork Ribs

To make rub, combine pepper, salt, brown sugar and garlic powder.

Place ribs on a large sheet of heavy-duty aluminum foil.  Evenly coat ribs with the rub.  Wrap foil around the ribs forming a packet. 

Grill, covered, over indirect heat for 2 hours or until meat is very tender.  

Meanwhile, combine barbecue sauce and, if desired, pineapple juice.

Remove ribs from foil and place over medium coals and cook an additional 10 minutes, brushing with sauce and turning frequently. 