Air Fryer Blooming Onions

I love making air fryer blooming onions when I want that crispy, restaurant-style appetizer without deep frying. The outside turns beautifully golden and crunchy, while the inside becomes tender and slightly sweet. Using the air fryer keeps things lighter and much less messy, which makes this one of my favorite homemade snacks.

Why You’ll Love This Recipe

I love how the air fryer creates a crisp coating with only a light spray of oil. It gives me the texture I crave without the heaviness of traditional frying.

I also appreciate how impressive this dish looks once it’s done. The “bloom” effect makes it feel special and perfect for serving at gatherings, game nights, or as a fun weekend treat.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

2 large sweet onions
1 cup all-purpose flour
2 large eggs
1/2 cup milk
1 cup breadcrumbs (panko preferred)
1 teaspoon paprika
1 teaspoon garlic powder
1/2 teaspoon onion powder
1/2 teaspoon salt
1/4 teaspoon black pepper
Cooking spray

For the dipping sauce (optional):
1/2 cup mayonnaise
2 tablespoons ketchup
1/2 teaspoon paprika
1/4 teaspoon garlic powder
Pinch of salt

Directions

1. I peel the onions and slice off a thin piece of the top (not the root).

2. I place the onion root-side down and carefully cut it into sections from the top down, stopping about 1/2 inch from the root so it stays intact.

3. I gently separate the layers to create the blooming shape.

4. In one bowl, I mix the flour with paprika, garlic powder, onion powder, salt, and black pepper.

5. In another bowl, I whisk together the eggs and milk.

6. In a third bowl, I add the breadcrumbs.

7. I coat each onion thoroughly in the seasoned flour, making sure it gets between the layers.

8. I dip it into the egg mixture, then coat it well with breadcrumbs, pressing gently so the crumbs stick.

9. I lightly spray the onion with cooking spray.

10. I preheat the air fryer to 375°F (190°C).

11. I place the onion in the air fryer basket and cook for 15–18 minutes, or until golden brown and crispy.

12. If making the dipping sauce, I stir together all sauce ingredients until smooth and serve alongside the onion.

Servings and timing

This recipe makes 2 blooming onions, serving about 4 people as an appetizer.

Prep time: 15 minutes
Cook time: 15–18 minutes
Total time: about 35 minutes

Variations

I sometimes add cayenne pepper or chili powder to the flour mixture for extra heat.

For a gluten-free version, I use gluten-free flour and breadcrumbs.

If I want a lighter sauce, I substitute half of the mayonnaise with Greek yogurt.

I also like adding grated Parmesan to the breadcrumb mixture for extra savory flavor.

storage/reheating

I store leftover blooming onions in an airtight container in the refrigerator for up to 3 days.

To reheat, I place them back in the air fryer at 350°F (175°C) for 4–6 minutes until heated through and crispy again. I avoid microwaving because it softens the coating.

FAQs

What type of onion works best?

I prefer large sweet onions because they bloom easily and have a milder flavor once cooked.

Why is my coating not sticking?

I make sure to coat the onion thoroughly in flour first and press the breadcrumbs gently into the layers to help them adhere.

Can I bake this instead of air frying?

Yes, I bake it at 400°F (200°C) for about 25–30 minutes until crispy and golden.

How do I cut the onion without slicing through the bottom?

I leave the root intact and cut slowly from the top downward, stopping before reaching the base.

Can I prepare this ahead of time?

I can bread the onion a few hours in advance and refrigerate it. I air fry it just before serving for the best texture.

Conclusion

I find air fryer blooming onions to be a fun and crispy appetizer that’s surprisingly easy to make at home. They’re crunchy, flavorful, and perfect for sharing. Whenever I want a lighter version of a classic favorite, I make this recipe and enjoy every golden, crispy bite.

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