Create crispy and flavorful onion rings using the Ninja Foodi Air Fryer and food processor. The food processor helps in making a perfect batter by blending flour, breadcrumbs, and spices. Dip the onion rings in the batter, then air fry until they turn golden and crispy. Serve these homemade onion rings as a side dish or as a crunchy topping for burgers and sandwiches.