Air Fryer Blooming Onion with Comeback Sauce Step-by-step instructions

Before you start

Before starting, make sure the air fryer is clean and dry. Have all ingredients measured and within reach. The onion should be peeled and the top trimmed. Prepare the egg wash and spiced flour in separate bowls.

If the air fryer basket is small, consider working in batches, but this recipe is designed for a single onion. The comeback sauce can be mixed and refrigerated while the onion is being prepared.

Instructions

Prep and Coat

1. 1Cut and Coat the Onion
   Peel the onion and trim the top. Place it root-side down. Make vertical cuts from the top down to about 1/2 inch from the root, creating 16 even petals. Be careful not to cut all the way through. In a small bowl, whisk the buttermilk and egg until combined. In a shallow dish, mix the flour, paprika, cayenne, salt, and black pepper. Brush the egg wash between every petal, then sprinkle the flour mixture generously between the petals, making sure to coat all surfaces.
   Look for The onion should hold together at the root, with petals that separate slightly and are evenly coated in flour.
   Tip Use a serrated knife for easier cutting, and keep the root intact so the onion holds its shape.
2. 2Make the Comeback Sauce
   In a small bowl, stir together the mayonnaise, ketchup, prepared horseradish, hot sauce, garlic powder, and smoked paprika until smooth. Cover and refrigerate until ready to serve.
   Look for The sauce should be creamy and pale pink, with a balanced tangy and spicy aroma.
   Tip For a spicier sauce, add a few extra drops of hot sauce to taste.

The onion should be neatly cut into 16 petals, still attached at the base. The egg wash and flour mixture are ready. The onion is evenly coated with both, with no dry spots. The comeback sauce is smooth and well combined.

Air Fry

3. 3Air Fry the Blooming Onion
   Preheat the air fryer to 380°F (193°C) for 3 minutes. Place the coated onion in the air fryer basket, root-side down. Spray the onion generously with cooking spray, making sure to get between the petals. Air fry for 15 minutes, or until the petals are golden brown and crispy. If the top petals brown too quickly, loosely cover with a small piece of foil for the last few minutes.
   Look for The onion should be deep golden brown, with petals that fan out and look crispy.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip Spraying the onion well helps it crisp evenly; do not overcrowd the basket.

The onion is in the air fryer, being sprayed with oil. The kitchen fills with the aroma of spices. After 15 minutes, the onion is golden brown and crispy, with petals that fan out slightly. The exterior is crunchy, and the interior is tender.

Serve

4. 4Serve with Sauce
   Carefully remove the blooming onion from the air fryer and place it on a serving plate. Serve hot with the comeback sauce on the side for dipping. Pull the petals apart with your fingers or a fork, and enjoy the crunchy, flavorful bites.
   Look for The onion should be crisp and golden, with a tender interior and a satisfying crunch when pulled.
   Tip Serve immediately for the best texture; the petals soften as they cool.

The blooming onion is on a serving plate, with the comeback sauce in a small bowl. The petals are easily pulled apart, showing a crisp crust and moist onion layers. Each bite has a satisfying crunch and a spicy, tangy flavor.

Common mistakes

One common mistake is cutting the onion too close to the root, causing the petals to fall apart. Leave at least 1/2 inch of the root intact.

Another is not coating the petals thoroughly; use a brush to get the egg wash and flour between every layer.

Overcrowding the air fryer basket can also lead to uneven cooking, so use a single onion. Finally, do not skip the cooking spray—it is essential for crispiness.

How to tell it’s done

The blooming onion is done when the petals are deep golden brown and crispy to the touch. The internal temperature of the onion should reach 160°F (71°C) to ensure the egg wash is fully cooked.

To test, carefully pull a petal away from the center; it should come off with a crisp snap. If the onion is browning too quickly, reduce the temperature to 360°F and continue cooking until done.

• Egg dishes: 160°F (71°C) in the thickest part