Prepare the Onions: Peel the onions and cut off the tops. Carefully cut into the onion to create petals, leaving the root end intact to hold them together.
Mix the Flour Coating: In a bowl, combine the flour, paprika, garlic powder, salt, and black pepper. For extra spice, add a pinch of cayenne pepper.
Prepare the Egg Mixture: In another bowl, whisk together the eggs and buttermilk.
Coat the Onions: Dip each onion first into the flour mixture, ensuring it's fully coated. Then dip into the egg mixture, and coat thoroughly with breadcrumbs.
Air Fry: Preheat the air fryer to 375°F (190°C). Spray the coated onions with cooking spray and place them in the air fryer basket. Air fry for 15-20 minutes, or until the onions are golden brown and crispy.
Serve: Serve the Mini Blooming Onions hot with your favorite dipping sauce.