Cajun French Fry/Onion Ring Seasoning This Seasoning is designed to sprinkle on your French Fries as soon as you remove them from the oil. This can also be used for your Onion Rings; mix it in the batter and sprinkle some on when you remove them from the fryer. We use it on all of our fried veggies and just about everything that we fry, except candy bars and Twinkies