Enjoy crispy and flavorful onion rings without the greasy mess. Slice onions into rings, dip them in a batter made from flour, milk, and spices, and then coat them with breadcrumbs. Place the onion rings in the Ninja Foodi Air Fryer and cook until they are golden and crispy. The air fryer gives the onion rings a satisfying crunch while reducing the amount of oil used compared to traditional deep frying. Serve them as a side dish or as a tasty snack.