Air Fryer Bloomin' Onion

Air Fryer Bloomin' Onion

This copycat Bloomin' Onion is light and easy to cook in the air fryer. Serve the onion petals with the tasty mayonnaise dip.
  • Preparation:
  • Cooking:
  • Total:
  • Serves: 4 persons



  1. Step 1

    Gather the ingredients.
  2. Step 2

    In a small bowl, combine the mayonnaise, ketchup, horseradish, garlic powder, paprika, oregano, salt, black pepper, and cayenne pepper. Stir to blend. Cover and refrigerate until serving time.
  3. Step 3

    Cut the top off the onion and remove the outer peel.
  4. Step 4

    Place the onion on a cutting board, cut-side down. With a sharp knife, make a cut about 1/2-inch from the root.
  5. Step 5

    Make three more evenly spaced cuts around the onion. You will have 4 evenly spaced portions. Make sure you leave the root intact.
  6. Step 6

    Make 2 to 3 cuts in the center of each quarter. You should have 12 to 16 cuts, depending on the size of the onion.
  7. Step 7

    Turn the onion over and separate the petals slightly.
  8. Step 8

    Place the onion in a bowl of ice water and let stand for 1 to 2 hours. Remove the onion to paper towels to drain. 
  9. Step 9

    Place the onion in a bowl and sift the flour over it while gently separating the petals. You might have to do this a few times to get good coverage. Gently turn the onion upside-down to shake off any excess.
  10. Step 10

    In a bowl, whisk the eggs with the buttermilk. Place the onion in a bowl and pour the egg mixture over it, gently separating the petals. Remove the onion to a wide, shallow bowl.
  11. Step 11

    Combine the breadcrumbs and Old Bay seasoning; sprinkle over the onion petals.
  12. Step 12

    Set the air fryer temperature to 375 F and preheat the following the manufacturer's directions. Spray the tray with cooking oil spray and add the onion, root-side down. Cook for 15 minutes. 
  13. Step 13

    Serve the blooming onion immediately with the dip.