Start by peeling the yellow onion and slicing it into ½-inch rings. Gently separate the rings and set them aside.
In one bowl, place the flour. In a second bowl, whisk the eggs. In a third bowl, combine the panko bread crumbs, garlic powder, onion powder, and sea salt.
Take each onion ring and dip it into the flour, shaking off any excess. Next, dip it into the beaten eggs, allowing the excess to drip off. Finally, coat the ring in the panko mixture, pressing lightly to ensure the crumbs stick. Repeat for all onion rings.
Preheat your air fryer to 400°F (200°C). Once preheated, arrange the breaded onion rings in a single layer in the air fryer basket. Make sure they are not overcrowded to allow for even cooking.
Drizzle a little extra-virgin olive oil over the onion rings for added crispiness. Cook for about 10-12 minutes, flipping halfway through, until they are golden brown and crispy.
Once cooked, remove the onion rings from the air fryer and let them cool slightly. Serve with tartar sauce or your favorite dipping sauce, and enjoy the crunch!