Crispy Blooming Onion Recipe (Air Fryer: Easy & Delicious)

This crispy blooming onion made in the air fryer is a show-stopping appetizer that’s crunchy on the outside, tender on the inside, and packed with bold flavor. I love how the air fryer gives me all the texture of the deep-fried version without the mess or extra oil. It’s easier than it looks—and totally worth it.

Why You’ll Love This Recipe

I make this blooming onion when I want something fun, flavorful, and a little dramatic on the plate. The seasoned coating turns golden and crisp in the air fryer, and each “petal” is perfect for dipping. It’s great for game day, parties, or even just a snack night. Plus, I skip the deep fryer and still get that satisfying crunch.

Ingredients

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

• Large sweet onion (like Vidalia)

• All-purpose flour

• Eggs

• Milk

• Paprika

• Garlic powder

• Onion powder

• Salt

• Black pepper

• Cayenne pepper (optional, for heat)

• Cooking spray

• Dipping sauce (like ranch, spicy mayo, or your favorite)

Directions

1. I peel the onion and cut off the top (pointed end), leaving the root intact.

2. With the flat side down, I make downward cuts into the onion to create 12–16 wedges, stopping about ½ inch from the root. Then I gently separate the layers to “bloom” the onion.

3. In one bowl, I whisk together the eggs and milk. In another, I mix the flour with paprika, garlic powder, onion powder, salt, pepper, and cayenne.

4. I dip the onion into the flour mixture, making sure to coat all the petals, then shake off the excess.

5. Next, I dip the onion into the egg mixture, letting it soak in, and then back into the flour mixture for a second full coating.

6. I spray the entire onion with cooking spray, making sure to coat it thoroughly for a crisp finish.

7. I preheat the air fryer to 375°F (190°C) and place the onion in the basket, root side down.

8. I air fry for 18–20 minutes, until the onion is golden brown and crispy.

9. I let it cool for a few minutes and serve it with dipping sauce.

Servings and timing

This recipe serves 2–4 people as an appetizer. Prep takes about 15–20 minutes, and air frying takes around 20 minutes. I can have it ready in under 45 minutes from start to finish.

Variations

Sometimes I mix Parmesan into the flour coating for a cheesy touch, or swap the seasonings for Cajun or ranch flavor. I’ve also made mini versions using smaller onions for individual portions.

storage/reheating

If I have leftovers, I store them in an airtight container in the fridge for up to 2 days. To reheat, I use the air fryer at 350°F (175°C) for about 5 minutes to crisp it back up. I don’t recommend microwaving—it turns soft quickly.

FAQs

What’s the best onion to use?

I go for large sweet onions like Vidalia or Walla Walla. They’re mild in flavor and bloom beautifully.

Can I make this ahead of time?

I prep the onion and coat it, then refrigerate it for a few hours. I air fry it right before serving for the best crunch.

Why didn’t my onion bloom properly?

It helps to make clean, deep cuts and gently separate the petals after slicing. If it’s too tight, I soak it in cold water for 10 minutes to help it open up.

Can I make it gluten-free?

Yes, I use a gluten-free flour blend and make sure my seasonings are gluten-free too. It still turns out crispy and delicious.

What sauces go best with blooming onion?

I like ranch, chipotle mayo, or a simple mix of ketchup and horseradish for a spicy kick. Anything creamy and tangy pairs well.

Conclusion

This air fryer blooming onion is one of my favorite impressive-yet-easy appetizers. It’s crispy, flavorful, and made with no deep frying required. Whether I’m making it for a party or just because, it always gets rave reviews and disappears fast.

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