Cut the onion into petals and soak them in buttermilk for 15 minutes.
In a bowl, mix the flour, paprika, garlic powder, salt, and black pepper.
Remove onion petals from buttermilk and dredge them in the flour mixture.
Coat the petals in panko breadcrumbs for extra crunch.
Preheat the air fryer to 400°F (200°C).
Arrange the coated onion petals in the air fryer basket in a single layer.
Cook for 8-10 minutes or until golden brown and crispy.
Serve immediately with your favorite dipping sauce.