Prime rib doesn’t need much help. Salt, pepper, smoke, and time are enough to let it speak for itself. Smoking it low and slow keeps the interior tender while building a subtle crust that doesn’t overpower the meat.
This lovely dream of a meal is served with au jus made from the pan drippings. Some people like to dip this in horseradish sauce, and everyone is entitled to do what they like, even if its wrong.