Plowboys BBQ 7 oz. Yardbird BBQ Rub. A versatile rub that can be used on pork, poultry, fish, veggies, and salads. This savory rub has a touch of sweetness followed by a little heat on the back of the tongue. It is packaged in a shaker can for easy application. Gluten-free, non-GMO, and MSG-free, it contains mustard and celery.