Air Fryer Blooming Onion

Air Fryer Blooming Onion

Indulge in a guilt-free culinary experience with our tantalizing Air Fryer Blooming Onion recipe—a healthier twist on the classic deep-fried favorite. This savory treat boasts a golden, crispy exterior while retaining the onion’s natural sweetness. Elevate your snacking game by following these simple steps.

1. Onion Preparation: Begin by selecting a large sweet onion and trimming approximately 1/2 inch from the top, followed by peeling away the outer layers. Create a stable base by cutting a small portion from the bottom. With the onion positioned flat, make vertical cuts, leaving a 1/4-inch base intact to ensure the onion holds its shape during cooking.

2. Buttermilk Bath: Immerse the prepared onion in a bath of rich buttermilk for a minimum of 30 minutes, or for an intensified flavor profile, refrigerate it overnight. This soaking process imparts a subtle tanginess and tenderizes the onion, enhancing the overall texture.

3. Flour Coating Blend: Craft a flavorful coating mixture by combining all-purpose flour, paprika, garlic powder, cayenne pepper, and salt in a shallow bowl. This artisanal blend ensures each petal of the blooming onion is generously coated, delivering a harmonious balance of spices.

4. Preheating the Air Fryer: Achieve optimal results by preheating your air fryer to 375°F (190°C). This precision ensures an even and thorough cooking process, transforming the onion into a masterpiece of crispiness.

5. Art of Coating: Remove the onion from the buttermilk bath, allowing any excess liquid to drain off. Gently coat the onion with the seasoned flour mixture, ensuring every nook and cranny is covered. The meticulous coating process guarantees a delightful crunch in every bite.

6. Air Fry Mastery: Lightly spray or brush the coated onion with olive oil to facilitate the browning process. Place the masterpiece in the preheated air fryer basket, allowing it to cook for 20-25 minutes. For optimal results, consider flipping the onion halfway through to achieve a uniform golden hue.

7. Presentation and Dipping Sauce: Once perfectly air-fried, transfer the blooming onion to a serving plate with finesse. Elevate the experience by pairing it with your favorite dipping sauce—be it a zesty spicy mayo or a smoky barbecue concoction.

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Air Fryer Blooming Onion


  • 1 large sweet onion
  • 1 cup buttermilk
  • 1 cup all-purpose flour
  • 1 tsp paprika
  • 1 tsp garlic powder
  • 1/2 tsp cayenne pepper (adjust to taste)
  • 1/2 tsp salt
  • Cooking spray or olive oil


  1. Prepare the Onion:
    • Cut about 1/2 inch off the top of the onion (the side with the stem).
    • Peel the outer skin and cut a small portion off the bottom to create a flat surface.
  2. Create Petals:
    • With the flat side down, make vertical cuts into the onion, leaving about 1/4 inch uncut at the bottom to hold it together.
    • Be sure not to cut all the way through; leave the base intact.
  3. Soak in Buttermilk:
    • Place the onion in a bowl and pour buttermilk over it. Allow it to soak for at least 30 minutes, or even overnight in the refrigerator.
  4. Preheat Air Fryer:
    • Preheat your air fryer to 375°F (190°C).
  5. Prepare Coating Mixture:
    • In a shallow bowl, combine the flour, paprika, garlic powder, cayenne pepper, and salt.
  6. Coat the Onion:
    • Take the soaked onion and gently shake off excess buttermilk.
    • Coat the onion thoroughly with the flour mixture, making sure to get the coating in between the petals.
  7. Air Fry:
    • Lightly spray or brush the onion with olive oil.
    • Place the coated onion in the air fryer basket.
    • Air fry for about 20-25 minutes or until golden brown and crispy. You may want to flip it halfway through for even cooking.
  8. Serve:
    • Once done, carefully transfer the blooming onion to a serving plate.
    • Serve with your favorite dipping sauce, such as a spicy mayo or a tangy barbecue sauce.