Pre-heat oven to 180º F.
Rub the rib rack with the dry spices and place on roasting rack.
Cook the ribs at 180º F for 3 hours.
Remove ribs from the oven and rack and turn the heat to 225º F.
Mix the brown sugar and honey.
Lay out enough aluminum foil to cover the ribs.
Spread the brown sugar/honey sauce over the ribs on both sides.
Seal the aluminum foil and place back on the roasting rack and put back in the oven.
Cook the ribs at 225º F for 2 hours.
Remove the ribs from the oven and rack and unwrap the aluminimum foil.
Place the ribs back on the rack and brush with barbecue sauce.
Place back in the oven, still at 225º F, for 1 hour.