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Air Fryer Onions

Air fryer onions reach caramelized perfection in minutes. Make rich, golden brown, crispy onions to use in dishes or as toppings without being stuck at your stove!

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Closeup on sauteed onions on a plate with a fork picking some of them up

When I found out how many of my favorite foods I could air fry, my life changed! Cooking onions in an air fryer basket means less time cleaning up and more time to enjoy your delicious dish. Whether you want sliced onions, sautéed onions, or roasted onion strings, air frying is the perfect method. 

These super tasty air fryer onions are the perfect topping for hamburgers, hot dogs, or even on their own as a side dish! 

Get your air fryer ready, grab some fresh onions, and experience the magic of turning simple ingredients into mouth watering creations. You’ll love the convenience and incredible flavor of these fried onions in the air fryer!

Ingredients needed to make air fryer onions in bowls

How to Caramelize Onions in the Air Fryer

A full printable version of this recipe with ingredient measurements is available at the bottom of this post.

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STEP ONE: Preheat the air fryer to 370 F.

STEP TWO: In a large bowl, toss the sliced onions with the olive oil and salt until well coated.

Raw onions in air fryer basket

STEP THREE: Place onions into the preheated air fryer basket and air fry onions for 5 minutes, shaking once halfway through, or until desired level of tenderness is reached.

STEP FOUR: Serve warm!

Tips to Make the Best Fried Onions in the Air Fryer

  • Use your favorite variety. I love using Vidalia onions for these air fryer caramelized onions! This air frying method works so well though, you can use any type of sweet onions, white onions, or red onions.
  • The larger, the better! Larger onions give you more to work with! It’s also easier to get evenly sized slices, allowing them to cook evenly.
  • Move the slices around. Shake or stir the onions during cooking to ensure they cook evenly and achieve an even golden brown color.
Cooked onions in air fryer basket

How Long to Air Fry Onions

For thinly sliced onions, a cooking time of around 12 to 15 minutes at 300 degrees F is a good starting point! However, the thickness of those delicious onions and your preferences can vary this time slightly. 

If you prefer softer, more caramelized onions, you can extend the cooking time by a few minutes.

On the other hand, if you want crispier onions, reduce the cooking time slightly. Be sure to give air fryer onions a stir every few minutes to help them cook evenly.

More Air Fryer Recipes with Onions

Air Fryer onions on grey plate with a fork in them

Ways to Use Air Fryer Onions

  • Pile air fried onion onto a plate of loaded fries or nachos for a delicious, savory upgrade.
  • Sprinkle over baked potatoes along with sour cream or cheese!
  • Incorporate roasted onions into your omelet or scrambled eggs for a flavorful twist to your breakfast.
  • Sprinkle air fryer onions on top of casseroles before baking to create a crispy and irresistible crust.
  • Fold fried onions into creamy sour cream or Greek yogurt-based dips for added texture and a delicious flavor.

Seasoning Ideas for Onions in the Air Fryer

  • Garlic powder: This makes just about any dish a million times better!
  • Brown sugar: Use this instead of white granulated sugar when you air fry onions to deepen the caramelized flavor.
  • Italian seasoning: Infuse air fried onion with an aromatic blend of oregano, parsley, and rosemary.
  • Cajun seasoning: This adds a spicy twist to this dish!
  • Smoked paprika: Creates a smoky flavor and deepens the color of air fried onions.
Air fryer onions on a grey plate

How to Store Leftover Air Fried Onions

Once cooled, store cooked onions in an airtight container. They will last for up to 5 days in the refrigerator or up to 3 months in the freezer

Reheat on the stove or in the air fryer, allowing frozen air fryer onions to thaw in the refrigerator overnight first.

More Air Fryer Vegetable Recipes You’ll Love:

Closeup on sauteed onions on a plate with a fork picking some of them up

Air Fryer Onions

Samantha Erb
Air fryer onions are crispy and flavorful perfection!
4.61 from 28 votes
Prep Time 10 minutes
Cook Time 5 minutes
Total Time 7 minutes
Course Air Fryer Recipes
Cuisine American
Servings 4 to 6 servings
Calories 52 kcal


  • 2 medium yellow onions sliced
  • 1 tablespoon oil
  • 1/2 teaspoon salt


  • Preheat your air fryer to 370 degrees.
  • In a large bowl, toss the sliced onions with the olive oil and salt until well coated.
  • Place onions into the preheated air fryer basket and cook for 5 minutes, shaking once halfway through, or until desired level of tenderness is reached.
  • Serve warm!


Serving: 1gCalories: 52kcalCarbohydrates: 5gProtein: 1gFat: 4gPolyunsaturated Fat: 3gSodium: 266mgFiber: 1gSugar: 2g
Tried this recipe?Let us know how it was!


About Samantha

I’ve always had a love of cooking and creating new recipes, so it only made sense to create a food blog so I could share those recipes with you. This site is designed to provide easy and flavorful recipes with as little ingredients as possible. That means you still get great flavor combinations without all that extra time and effort. Read more...

8 thoughts on “Air Fryer Onions”

  1. I’m curious whether it’s possible to cook a whole/unchopped onion in an air fryer (or in some other system).

    I like cooked onions but haven’t been able to do them for years. To say my eyes water is an understatement! If I chop an onion I’m basically out of commission for the rest of the day, between my eyes becoming sore and unopenable, and often giving me a headache. Raw onions cooking also gives me a headache.

    I miss onions, though, and trying to find a way to cook them, maybe by setting some kind of cooker outdoors

    • That must be terrible! I wonder if you have some sort of allergy to raw onions.

      I have not tried to do a full onion in the air fryer, so I’m not sure how that would turn out. I know my eyes water when I cut red onions. Always make sure you cut the onion with the cut side down to try to help out with it.

      Have you tried using a chopper to cut onions so it’s just one swift motion and it’s done? Our local store also has options for precut diced and sliced onions too. It’s possible a store near you does the same.

    • When chopping onions, set a glass of water next to your cutting board. The onion particles will go to the water and are diverted away from your eyes. It works!

4.61 from 28 votes (27 ratings without comment)

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