Start by slicing a large onion into thin, consistent rings, about ¼ inch thick. Place the onion rings in a bowl of cold water for about 10 minutes to reduce bitterness, then drain and pat them dry.

Organize your workspace by preparing three separate bowls: first bowl with ½ cup of all-purpose flour, second bowl with one beaten egg, third bowl with ½ cup of panko breadcrumbs combined with garlic powder and paprika.

Coat each onion ring by dipping it into flour, then into the beaten egg, and finally into the panko mixture, pressing gently to ensure adherence.

Preheat your air fryer to 375°F (190°C) for about 3-5 minutes.

Lightly spray the air fryer basket with olive oil. Arrange the coated onion rings in a single layer in the basket.

Cook the onion rings in the air fryer for 8-10 minutes, flipping them halfway through.

Remove the crispy onions from the air fryer and let them cool on a wire rack for a couple of minutes before serving.