Preheat oven to 300°F to 325°F
Remove membrane from the back of the ribs
Pat ribs dry with paper towels
Season both sides with salt, pepper, and dry rub
Wrap ribs tightly in foil
Place wrapped ribs on a baking sheet
Roast for 2.5 to 3.5 hours, depending on thickness
Unwrap carefully and check tenderness
Brush ribs with barbecue sauce if desired
Increase oven temperature to 425°F or broil briefly
Return ribs to oven uncovered for 5 to 10 minutes
Remove from oven and let rest for 10 minutes
Slice between the bones and serve