Crunchy and flavorful onion rings are a breeze to make in the Instant Vortex Air Fryer. Slice onions into rings, dip them in a batter made with flour, spices, and buttermilk, and air fry until they turn golden brown. These homemade onion rings are crispy on the outside and tender on the inside. Serve them as a side dish or as a tasty addition to your favorite burger.