Air fryers are versatile, but they're not great for every food including fried dough or any kind of batter-based treats, like funnel cakes, due to their pre-cooked liquid state.

When uncooked, doughs and batters are too thin and lack the structure needed to stay put at the base of the air fryer; they will seep through the perforated basket, making a mess.

Other batter- or dough-based foods that you should not put in the air fryer include pancakes, brownies, homemade doughnuts, fritters, and battered fish or corn dogs.