simmer them in kettle of salted herbed water to get the flabor all through them for about an hour. This is just under the boiling point! or you can put them in pressure cooker at 15 pressure for about 15 minutes. 2 cups water to 2 pounds or more of meat and bones will work just fine. 1/2 tsp salt and any herbs like oregano, thyme, chives is great.
Put the bbq sauce on after they have cooked on the grill for a bit. It will burn faster if you put it on before you grill them mostly done.