How To Fry Onions In An Air Fryer

If you love the taste of caramelized onions but want to avoid the mess and hassle of using a stove, an air fryer can be your new best friend. Air frying onions is a quick, easy, and healthy alternative to traditional stovetop frying. With the right technique, you can achieve perfectly crispy, golden-brown onions that add a delicious flavor to any dish.

First, start by preheating your air fryer to the desired temperature. For frying onions, a temperature of around 350°F (175°C) works well. While the air fryer is preheating, peel and thinly slice the onions. You can use any type of onion, such as yellow, red, or white, depending on your preference.

Next, place the sliced onions in a bowl and drizzle them with a small amount of oil. Use a mild-flavored oil like olive oil or vegetable oil to enhance the natural sweetness of the onions. Gently toss the onions to ensure that each slice is coated with the oil. For added flavor, you can season the onions with salt, pepper, or other herbs and spices of your choice.

Once the air fryer is preheated, carefully transfer the coated onions into the air fryer basket. Spread them out in a single layer to allow for even cooking and good airflow. Depending on the desired level of crispiness, you can fry the onions for 8-10 minutes, pausing once or twice to shake or stir them for even browning.

When the onions are golden brown and crispy, carefully remove them from the air fryer basket using tongs or a spatula. Allow them to cool for a few minutes before using them as a topping for burgers, salads, sandwiches, or any other dish where caramelized onions would be delicious. The air-fried onions will have a beautiful texture and flavor that will take your meals to the next level!

So, if you’re looking for a quick and convenient way to fry onions without the mess and excess oil, give your air fryer a try. You’ll be pleasantly surprised at how easy and delicious the results can be. Experiment with different seasoning combinations to create your own signature caramelized onions, and enjoy the rich, savory taste they add to your favorite dishes!

Choosing the Right Onions

When it comes to frying onions in an air fryer, choosing the right onions can make a big difference in the taste and texture of your dish. Here are a few factors to consider:

  • Variety: There are several varieties of onions available, including yellow onions, red onions, and white onions. Each variety has its own distinct flavor profile, so choose the one that suits your taste preferences.
  • Sweetness: Some varieties of onions, such as Vidalia onions, are known for their natural sweetness, which can add a delicious caramelized flavor to your fried onions. If you prefer a milder taste, opt for sweet onions.
  • Size: The size of the onion can also affect the cooking time and the overall taste. Smaller onions tend to be sweeter and cook more quickly, while larger onions often have a stronger flavor.
  • Freshness: Always choose fresh onions that are firm and free from blemishes. Fresh onions will have a stronger flavor and crisp texture when cooked.
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Ultimately, the choice of onions for frying in an air fryer is a matter of personal preference. Experiment with different varieties and sizes to find the perfect balance of flavor and texture for your dishes.

Find Fresh and Firm Onions

Before you begin, it is important to find the right onions for frying in an air fryer. Fresh and firm onions will yield the best results, so it’s worth taking a little extra time to choose the perfect ones.

When shopping for onions, look for bulbs that are heavy for their size and free from any soft spots or blemishes. The outer skin should be dry and papery, with no signs of mold or sprouting. Avoid onions with green sprouts or a strong onion smell, as these are indications of age and may result in a less desirable flavor.

Different types of onions have varying flavors and levels of sweetness, so choose the variety that suits your taste preferences. Yellow onions are the most versatile and commonly used for frying, but you can also try red or white onions for a different flavor profile.

Once you have chosen your onions, store them in a cool, dry, and well-ventilated place. Avoid storing them near potatoes, as both emit gases that can cause spoilage. Onions can be stored for several weeks if kept properly, so be sure to check them periodically to ensure they remain fresh and firm.

Choosing the Right Onion Size

The size of the onion will also affect the cooking time and texture of the fried onions. Larger onions will take longer to cook and may result in softer, more caramelized slices. Smaller onions will cook faster and have a milder flavor. Consider the desired outcome of your dish when selecting the size of onions to use.

Avoid Overcrowding the Air Fryer

When frying onions in an air fryer, make sure to spread them out evenly in a single layer to ensure they cook uniformly. Overcrowding the air fryer basket can cause the onions to steam rather than fry, resulting in a less crispy texture. If you have a large quantity of onions to fry, it is best to do it in batches.

Tip: For a quicker and more efficient frying process, consider investing in a larger air fryer with a larger capacity.

Preparing the Onions

To start, gather the necessary ingredients for frying onions in an air fryer. You will need:

  • Onions (white or yellow)
  • Vegetable oil or cooking spray
  • Salt and pepper (optional)

Once you have all the ingredients ready, it’s time to prep the onions. Begin by peeling and slicing the onions into thin strips. You can slice them either vertically or horizontally depending on your preference.

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If you prefer your onions to be sweeter and have a milder flavor, soak the sliced onions in ice water for about 10 minutes. This will help remove some of their pungency.

Next, drain the soaked onions and pat them dry with a paper towel. It’s important to remove excess moisture from the onions before frying them to achieve a crispy texture.

If you want to add some additional flavor to your fried onions, you can season them with salt and pepper. Simply sprinkle the desired amount of seasoning over the sliced onions and mix well.

Ingredients: Instructions:
Onions Peel and slice into thin strips
Vegetable oil or cooking spray Use to coat the onions
Salt and pepper (optional) Sprinkle desired amount over the onions

Once the onions are peeled, sliced, and seasoned, you are ready to move on to the next step of frying them in an air fryer. This preparation process ensures that your fried onions will turn out crispy, flavorful, and perfectly cooked.

Peel and Slice the Onions

To fry onions in an air fryer, start by peeling and slicing the onions. The first step is to remove the outer skin of the onions. Use a sharp knife to cut off the top and bottom of the onion, then make a shallow vertical cut along the side of the onion to loosen the skin. Gently peel off the skin, being careful not to remove too much of the onion flesh.

Once the onions are peeled, it’s time to slice them. Cut the onions in half from top to bottom, then lay each half flat on the cutting board. Use a sharp knife to make thin, even slices across the width of the onion. For softer, more caramelized onions, slice them thicker. For quicker cooking and a crunchier texture, slice them thinner.

After slicing the onions, separate the individual layers with your fingers. This will help the onions to cook evenly and promote better air circulation in the air fryer. Once the onions are peeled and sliced, they’re ready to be fried in the air fryer.

Frying Onions in an Air Fryer

Onions are a versatile ingredient that can add flavor and depth to many dishes. While traditionally onions are fried in oil or butter on the stovetop, using an air fryer to fry onions is a healthier option. Air frying onions not only reduces the amount of oil needed but also produces crispy, delicious results.


Start by peeling and slicing the onions into thin, even slices. You can use a sharp knife or a mandoline slicer for this step. It’s important to slice the onions evenly to ensure even cooking. Once the onions are sliced, separate the layers with your fingers so that they cook evenly and become crispy.

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Next, preheat the air fryer to around 400°F (200°C). Preheating ensures that the onions cook quickly and evenly.


Place the onion slices in a single layer in the air fryer basket. It’s important not to overcrowd the basket to allow hot air to circulate and cook the onions evenly. If necessary, cook the onions in batches.

Set the air fryer to 10 minutes and begin cooking. After 5 minutes, use tongs or a spatula to toss the onions gently, ensuring that they cook evenly. Continue cooking for another 5 minutes or until the onions reach your desired level of crispiness.

Once the onions are cooked, remove them from the air fryer and transfer them to a plate lined with paper towels to absorb any excess oil. The paper towels will also help the onions maintain their crispy texture.

Finally, season the fried onions with salt and pepper or any desired seasoning of your choice. You can serve them as a topping for burgers, salads, soups, or any other dish that could benefit from a flavorful and crispy addition.

Air frying onions is a simple and quick way to achieve delicious results without the need for excessive oil or butter. With the right techniques, you’ll have perfectly fried onions in no time!

Preheat the Air Fryer

Before you begin frying onions in an air fryer, it’s important to preheat the appliance. Preheating helps to ensure that your onions cook evenly and achieve that desired crispy texture.

Start by plugging in the air fryer and setting the temperature to 400°F (200°C). Allow the fryer to preheat for about 5 minutes. During this time, you can prepare your onions by peeling and slicing them to your desired thickness.

Why Preheat?

Preheating the air fryer allows it to reach the desired cooking temperature before you add the onions. This helps to create a hot environment that will quickly cook the onions and result in a delicious caramelized flavor.

If you skip the preheating step, your onions may not cook evenly and could end up soggy or undercooked. Preheating ensures that the air fryer is ready to go and will produce perfectly crispy fried onions.


Can I fry onions in an air fryer?

Yes, you can fry onions in an air fryer. It’s a quick and easy way to cook onions, and they come out crispy and delicious.

How long does it take to fry onions in an air fryer?

The time it takes to fry onions in an air fryer can vary depending on the quantity of onions and the desired doneness. Typically, it takes about 10-15 minutes to fry onions in an air fryer.

What temperature should I set my air fryer to fry onions?

You should set your air fryer to 350°F (175°C) to fry onions. This temperature allows the onions to cook evenly and become crispy without burning.

Elizabeth Green
Elizabeth Green

Elizabeth Green is a seasoned home chef and culinary expert who has a passion for all things kitchen-related. With her extensive knowledge of the latest kitchen products and appliances, Elizabeth provides insightful reviews and recommendations to help consumers make informed purchasing decisions. Whether you're looking for a new refrigerator, blender, or cookware set, Elizabeth is your guide to finding the best kitchen products available in the UK.

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