Air Fryer Onions

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Air Fryer Onions are amazingly simple to make and they turn out perfectly golden and caramelized in just minutes. Once you make fried onions in air fryer, you’ll never want to cook onions any other way again. 

Suitable for low carb, Keto, Paleo, Whole30, Gluten Free, and Vegan diets. Post includes Weight Watchers Points.

close up of the finished air fryer onions on a white plate ands ready to serve

The aroma and taste of sweet, tender onions are straight-up delicious. And this recipe for making onions in air fryer seriously kicks it up another notch.

From burgers to sandwiches, served alongside steak, or even piled on pizza, air fryer onions add tons of flavor to soooooo many meals. 

And these air fryer onions not only taste great; they are simple to make too. It’s so easy to prepare a big batch of fried onions in air fryer at the beginning of the week to use in your favorite meals all week long.

Along with these crispy Air Fryer Green Beans, crispy Air Fryer Zucchini Fries, and delicious Air Fryer Beets, and these Air Fryer Fried Pickles.

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top down view of a plate of finished air fryer onions

Plus, this air fryer recipe only takes about 20 minutes to make, and stores incredibly well in the fridge or freezer. 

Trust me when I say that making fried onions in air fryer is going to be the only way you want to cook onions from now on. #itsthatgood

air fryer cheat sheet printable

Why Make This Recipe

  • Fast – Cook a batch of tasty onions in air fryer in less than 20 minutes, including prep and cleanup. That’s fast! 
  • Foolproof – The air fryer cooks evenly so there is little risk of ruining a batch of air fryer sautéed onions. Follow the instructions, and this recipe is foolproof. 
  • Versatile – Perfect for using on burgers, sandwiches, grilled meats, fajitas, tacos, pizza, omelets, and more. You can also use Air Fryer Radishes too.
  • Flavorful – One bite and you’ll be totally hooked on these delicious onions. 

Ingredient Notes

  • Onions – Use both red onions and white onions for lots of flavor, or use what you have on hand. 
  • Balsamic Vinegar – Adds amazing flavor and moisture. 
the cooked air fryer onions inside the air fryer basket

Ready to learn how to make crispy onions in air fryer? Grab those 2 simple ingredients and I will show you…

Handy Tip: Use Good Kitchen Tools!

For the best tools to help make your recipe even easier and more successful, check out my collection of the Best Air Fryer Tools on Amazon.

How To Cook Onions in Air Fryer

Get the complete ingredients list and instructions from the recipe card below.

  1. Preheat the Air Fryer to 350 degrees F / 180 degrees C.
  2. Remove the skins and slice onions into evenly thick slices. 
  3. Place the onion slices in an air fryer basket and brush with balsamic vinegar.
  4. Air fry for 10-12 minutes or until golden brown to your taste. Carefully flip halfway through cooking.  
image collage showing the steps for making air fryer onions

Expert Tips 

  • Slice or cut the onions into even-sized pieces so they cook evenly. 
  • For thin slices or smaller pieces of onions, you may need to shorten the cooking time.
  • For thicker, larger pieces of onions, you may need to add some cooking time
  • Spray the air fryer basket with a bit of cooking spray, avocado oil, or olive oil to prevent the onions from sticking. 
  • Air fried onions will shrink a bit as they cook. 
  • Toss the sliced onions halfway through cooking or more often for smaller onions.
  •  Air fryer temperatures can vary depending on the make and model. Use cooking time listed as a guide, check for doneness, and adjust as needed.
  • Don’t forget to check out my best air fryer tips to get better results with every recipe.

Delicious Variations

  • Add Seasonings – Toss the onions with a bit of olive oil, garlic powder, and your favorite seasoning blend. Italian seasoning, taco, Greek, and Cajun seasoning are all great options. 
  • Use Different Onions – Change up the flavor profile by using a combination of sweet onions like Vidalia onions with yellow onions and red onions.
  • Make Them Spicy – Add a bit of red pepper flakes or pinch of Cayenne pepper to give the onions a little kick. 
  • Swap The Vinegar – Try other vinegar flavors in place of Balsamic vinegar. 
the completed recipe served on a white plate

Prep And Storage

  • Prep Ahead – Slice raw onion in advance if desired. You can even use frozen onions. 
  • Store – Cooked onions should be stored in an airtight container in the fridge. Consume within one week. 
  • Freeze – Store in freezer bags and keep frozen for up to three months. 

FAQs

Are Onions Good In An Air Fryer?

Onions cooked in the air fryer are sweet and tender. They are so easy to make in just minutes. 

Can You Caramelize Onions In Air Fryer?

To make extra sweet caramelized onions, toss the onions with a bit of sugar before adding to the air fryer.

Toss the onions frequently until they are cooked to your desired doneness. Sugar can cause burning, so watch these onions closely. 

How To Slice Onions For Air Fryer?

You can slice, wedge, or chop the onions. The trick is to cut the pieces a similar size and make sure they will not fall through the spaces in your air fryer rack.

Thinner onions can cook quickly, so use the recipe times as a guide and adjust as needed. 

How Long To Air Fry Onions?

Large slices of onions will cook perfectly in the air fryer in about 10 minutes. 

close up of a wooden spoon removing one portion of air fryer onions from the air fryer basket

More Recipes You May Like

Want all the best air fryer recipes, tips, and temperature cheat sheet–all in one place? Get the printable air fryer ebook and transform the way you plan and cook every meal!

Serving Suggestions

Weight Watchers Points

There are 0 Blue Plan SmartPoints in one serving of this.

a white plate filled with the finished onions

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close up of the finished air fryer onions on a white plate ands ready to serve
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5 from 4 votes

Air Fryer Onions

Delicious air fried onions are ready in minutes!
Prep Time10 minutes
Cook Time10 minutes
Total Time20 minutes
Cuisine: American
Diet: Gluten Free
Servings: 4
Calories: 26kcal
Author: Bintu Hardy

Ingredients

  • 1 white onion
  • 1 red onion
  • 1 tablespoon balsamic vinegar

Instructions

  • Preheat the Air Fryer to 350 degrees F / 180 degrees C.
  • Remove the skins and slice onions into evenly thick slices.
  • Place the sliced onions in an air fryer basket and brush with balsamic vinegar.
  • Air fry for 10-12 minutes or until golden brown to your taste. Carefully flip the onions halfway through cooking.
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Notes

  • Slice or cut the onions into even-sized pieces so they cook evenly. 
  • For thin slices or smaller pieces of onions, you may need to shorten the cooking time.
  • For thicker, larger pieces of onions, you may need to add some cooking time. 
  • Spray the air fryer basket with a bit of cooking spray, avocado oil, or olive oil to prevent the onions from sticking. 
  • Air fried onions will shrink a bit as they cook. 
  • Toss the sliced onions halfway through cooking or more often for smaller onions.
  •  Air fryer temperatures can vary depending on the make and model. Use cooking time listed as a guide, check for doneness, and adjust as needed.

Nutrition

Calories: 26kcal | Carbohydrates: 6g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 3mg | Potassium: 85mg | Fiber: 1g | Sugar: 3g | Vitamin A: 1IU | Vitamin C: 4mg | Calcium: 14mg | Iron: 1mg

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One Comment

  1. 5 stars
    Had never thought to do onions in the air fryer, so good! Will definitely be doing this again.