Vegan Blooming Onion in the Air Fryer – A Restaurant Favorite at Home

There’s something undeniably fun about pulling apart a blooming onion. It’s crispy, salty, and just a little indulgent, but this version skips the deep fryer in favor of a cleaner, lighter air-fried approach.

The plant-based batter has plenty of seasoning, and the simple prep method means you don’t need a restaurant kitchen to get great results.

Pair it with your favorite vegan dipping sauce, and you’ve got a snack everyone will gather around.

Ingredients for Air Fryer Blooming Onion

• 1 large sweet onion (like Vidalia)
• ¾ cup unsweetened plant milk
• 1 tablespoon apple cider vinegar or lemon juice
• ¾ cup all-purpose flour
• ½ cup cornstarch
• 1 tablespoon smoked paprika
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon salt
• ¼ teaspoon black pepper
• Optional: light spray of oil for extra crispness

Suggested dipping sauce:

• Vegan mayo, ketchup, hot sauce, or a simple garlic yogurt dip

How to Cut a Blooming Onion

1. Slice off the top of the onion and peel the outer layer.
2. Place the onion root-side down on a cutting board.
3. Starting about half an inch from the root, make vertical cuts down the sides. Begin with quarters, then divide each section until you have 12 to 16 “petals.”
4. Gently separate the layers with your fingers to open it like a flower.

How to Make a Blooming Onion in the Air Fryer

1. Make the batter

In a bowl, mix plant milk and vinegar to make a vegan buttermilk. Let it sit for a few minutes. In a separate bowl, whisk together flour, cornstarch, and spices.

2. Coat the onion

Turn the onion upside down and dip it into the buttermilk, letting the liquid soak between the petals. Then coat thoroughly with the dry flour mixture, getting the coating into every layer. For extra crispness, repeat the dipping process once more.

3. Air fry

Preheat your air fryer to 375°F. Place the coated onion cut-side up in the basket or on a parchment-lined tray.

Spray lightly with oil if desired. Cook for 15 to 20 minutes, checking halfway. The onion should be golden brown and crisp on the edges.

Tips for The Perfect Air Fryer Blooming Onion

If you’ve never made a blooming onion before, you might want to bear the following in mind:

• Choose a large, round onion with tight layers for best results
• Use gentle hands when separating the petals so the onion stays intact
• Double-dip for a thicker crust that crisps up beautifully

Don’t overcrowd the air fryer. Cook one onion at a time

Serving Suggestions For Your Blooming Onion

Serve this blooming onion fresh out of the air fryer with a dipping sauce of your choice. It pairs well with:

• Spicy vegan mayo or chipotle sauce
• Classic ketchup or mustard blend
• Garlic tahini or herbed yogurt dips

A plate of fresh veggies or pickles on the side

Storing and Reheating

Blooming onions are best enjoyed fresh, but if you have leftovers:

• Refrigerate: Store covered in the fridge for up to 2 days
• Reheat: Use the air fryer again at 350°F for 5 to 8 minutes until crisp. Avoid microwaving as it softens the crust

Final Thoughts

This vegan blooming onion brings all the fun and flavor of a restaurant favorite into your home kitchen.

It’s crunchy, savory, and easy to share, but also simple enough to make whenever the craving hits.

With just a few ingredients and your air fryer, you can whip up a show-stopping snack that’s entirely plant-based and crowd-approved.

Vegan Blooming Onion in the Air Fryer – A Restaurant Favorite at Home

Recipe by Jess Miller

Servings

4

servings

Prep time

30

minutes

Cooking time

40

minutes

Ingredients

• 1 large sweet onion (like Vidalia)

• ¾ cup unsweetened plant milk

• 1 tablespoon apple cider vinegar or lemon juice

• ¾ cup all-purpose flour

• ½ cup cornstarch

• 1 tablespoon smoked paprika

• 1 teaspoon garlic powder

• 1 teaspoon onion powder

• ½ teaspoon salt

• ¼ teaspoon black pepper

• Optional: light spray of oil for extra crispness

Directions

• Make the batter
• Coat the onion
• Air fry