Prepare the Onion: Begin by peeling the large onion and trimming the top and bottom. Carefully slice the onion into petal-like sections, keeping the base intact.

Soak: Place your sliced onion in a bowl and cover it with buttermilk. Let it soak for 10-15 minutes.

Mix Coating: In a shallow dish, whisk together the flour, panko, paprika, garlic powder, salt, and pepper.

Coat: Remove the onion from the buttermilk and dunk each petal into the flour mixture, ensuring they are fully coated.

Preheat: Preheat your air fryer to 375°F (190°C).

Cook: Place the coated onion petals in the air fryer and spray lightly with cooking oil. Air fry for 12-15 minutes, flipping halfway.

Serve: Remove the crispy onion petals, let them cool slightly, and serve with your favorite dipping sauces.