
Air fryers are a quick and convenient way to cook potatoes and onions, and they can be ready to eat in less than 30 minutes. This method is also healthier than pan-frying as it requires less oil, making it less messy and easier to clean up. The potatoes and onions can be seasoned to your taste and are a great, versatile side dish for breakfast, lunch, or dinner.
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What You'll Learn

Preparation and cooking time
The preparation and cooking time for fried potatoes and onions in an air fryer vary depending on the type and quantity of ingredients used, as well as the model of the air fryer. Here is a step-by-step guide to help you with the process:
Preparation:
- Choose your potatoes. Russet, red, gold, or yellow potatoes are all suitable options, and you can decide whether to peel them or keep the skin on. Keeping the skin on can add a crispy texture to the dish.
- Clean and peel the potatoes, if desired. If keeping the skin on, scrub them thoroughly.
- Cut the potatoes into uniform pieces. The size can vary, but aim for cubes or slices between 1/4 inch to 1 inch thick. Cutting them evenly ensures even cooking.
- Prepare the onions by peeling and slicing them. Aim for slightly larger pieces, about 3/4 to 1 inch thick, to prevent them from falling through the cracks of the air fryer basket.
- Choose your oil. Avocado oil, olive oil, canola oil, or any other cooking oil of your preference can be used.
- Gather your seasonings. Common choices include salt, black pepper, garlic powder, paprika, and Italian seasoning. You can also add a pinch of red chilli, brown sugar, or other herbs for extra flavour.
- Place the potatoes in a medium-sized bowl and drizzle or spray them with oil. Toss the potatoes to coat them evenly.
- Add your chosen seasonings to the potatoes and toss again to ensure they are well coated.
Cooking:
- Preheat your air fryer. The ideal temperature varies depending on the source, with suggestions ranging from 375°F/190°C to 390°F.
- Place the seasoned potatoes in the air fryer basket, ensuring they are in a single layer for even cooking.
- Cook the potatoes for about 6-7 minutes initially. If your air fryer doesn't require preheating, you can place the potatoes inside and then turn it on.
- While the potatoes are cooking, toss the onions in the remaining oil and seasoning mixture in the same bowl to absorb any leftover spices.
- After the initial cooking time, add the seasoned onions to the air fryer basket and give it a good shake to mix the potatoes and onions. You can use tongs for this step if needed.
- Continue cooking for an additional 7 to 9 minutes, or until the potatoes are golden brown and the onions are tender. This timing may vary depending on your air fryer model and the size of the potato cubes.
- During cooking, shake the basket every 5 minutes or halfway through to ensure even cooking and prevent overcrowding, which can affect crispiness.
- Once the potatoes and onions are cooked to your desired level of doneness, remove them from the air fryer and serve immediately. Enjoy them as a side dish or a tasty addition to your favourite meals!
Leftovers can be stored in an airtight container in the refrigerator for up to 3 to 5 days. When reheating, place them back in the air fryer at 380°F for about 3 minutes.
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Oil and seasoning
Oil is an important component of frying potatoes and onions in an air fryer. You only need a little bit of oil to get crispy edges on your vegetables. Avocado oil, olive oil, canola oil, and vegetable oil are all good options for frying potatoes and onions in an air fryer. You can also use cooking spray or an oil spritzer to coat your vegetables in oil.
When it comes to seasoning, the options are endless. You can use salt, black pepper, garlic powder, paprika, and herbs like parsley, thyme, or rosemary. You can also add a squeeze of lemon to your potatoes to cut through the richness. If you want to add a little heat, a pinch of red chili flakes will do the trick. Italian seasoning or brown sugar are other options for adding flavor to your potatoes and onions. Ultimately, you can season your potatoes and onions however you like and adjust the amounts to your personal preference.
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Adding onions
You can use white, yellow, or sweet onions, depending on your preference and what you have available. Cut the onions into 1/4 to 3/4 inch slices or pieces. You want to avoid cutting them too small, as they may fall through the holes in the air fryer basket. You can also slice them into half-inch pieces, but this may require a bit more cooking time to get them to your desired level of doneness.
When it comes to adding the onions to the air fryer, it's best to add them after the potatoes have had a head start. This is because potatoes generally take a little longer to cook than onions. So, add your potatoes to the air fryer first and give them a head start of about 6-7 minutes. Then, add your onions, giving the basket a good shake to ensure everything is well-coated and distributed.
You can also add the onions and potatoes to the air fryer at the same time if you prefer, but you may need to adjust the cooking time to ensure the onions don't overcook. This can be a great option if you're short on time or want to keep the cooking process as simple as possible.
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Cooking time and temperature
The cooking time and temperature for frying potatoes and onions in an air fryer depend on the type of potatoes and onions used, the size of the potato cubes, and the model of the air fryer. For example, baby potatoes or russet potatoes will crisp up more than other varieties. Similarly, the size of the potato cubes affects the cooking time, with larger cubes requiring more time to cook. Different models of air fryers may also have different cooking times and temperatures, so it is important to refer to the specific model's instructions.
That being said, a general guideline for cooking time and temperature when frying potatoes and onions in an air fryer is as follows:
First, preheat the air fryer to a temperature between 375°F and 390°F (about 190°C). While the air fryer is preheating, prepare the potatoes and onions by cutting them into uniform pieces. For potatoes, a recommended size is cubes of about 1-inch thickness. For onions, cut them into pieces of about ¾ to 1-inch thickness. It is important to avoid cutting the onions too small, as they may fall through the cracks of the air fryer basket.
Next, in a medium bowl, add the potatoes, onions, oil, and seasonings. Toss the ingredients until they are well coated. The type and amount of oil and seasonings used can be adjusted to personal preference, but a common recommendation is to use avocado or olive oil and seasonings such as salt, black pepper, garlic powder, and paprika.
Once the air fryer is preheated, place the potatoes and onions in the air fryer basket, ensuring they are in a single layer to allow for even cooking. Cook the potatoes for about 6-7 minutes, then add the onions to the air fryer basket and cook for an additional 12-14 minutes, or until the potatoes are tender and the onions have crispy edges. It is important to shake the basket or toss the ingredients every 5 minutes to ensure even cooking.
The total cooking time for the potatoes and onions in the air fryer is typically around 18-20 minutes, but this may vary depending on the specific model of the air fryer and the size and type of potatoes and onions used. It is important to keep an eye on the ingredients and adjust the cooking time as needed to ensure they are cooked to your desired level of doneness.
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Serving suggestions
Air fryer potatoes and onions are a versatile dish that can be served for breakfast, lunch, or dinner. They can be enjoyed on their own or as a side dish with various meals. Here are some serving suggestions:
Breakfast
For breakfast, air fryer potatoes and onions can be served with a fried egg, toast, and breakfast meat such as sausage, bacon, or pork chops. For a heartier meal, you can add cheese, sour cream, and green onion to create a loaded breakfast bowl. A squeeze of lemon or a sprinkle of herbs like parsley, thyme, or rosemary can add a refreshing touch to your morning meal.
Lunch and Dinner
Air fryer potatoes and onions make a great side dish for lunch or dinner. They pair well with proteins such as chicken, salmon, or steak bites. You can also serve them with burgers, curries, pierogies, or stuffed bread. For a vegetarian option, they can be the star of a hearty lunch or dinner bowl, accompanied by grains like rice and other vegetables like cabbage or green beans.
Snacks and Appetizers
These crispy potatoes and onions can be a tasty snack or appetizer, especially when served with a dip. Try a homemade Chick-fil-A sauce or hot sauce and ketchup for a tangy kick.
Leftovers
Leftover air fryer potatoes and onions can be stored in an airtight container in the refrigerator for up to 3 to 5 days. To retain their crispness, it is best to enjoy them as soon as possible after cooking. Reheat them for 3 minutes at 380°F. You can also get creative with your leftovers by incorporating them into new dishes. Try making a potato and onion curry, adding them to gravy and serving with bread, or mashing them with seasoning for a stuffed bread filling.
With their versatility and ease of preparation, air fryer potatoes and onions are a great addition to your culinary repertoire, offering numerous serving options for any time of the day.
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Frequently asked questions
First, cut your potatoes and onions into slices or cubes. Then, add them to a bowl with your choice of oil and seasoning. Toss the ingredients until they are well coated. Next, preheat your air fryer to 375-390F/190-200C. Place the potatoes and onions in the air fryer basket, ensuring they are in a single layer. Air fry for 10-15 minutes, tossing every 5 minutes so that they cook evenly. Fry until they reach your desired colour and crispiness.
It takes around 12-15 minutes to cook potatoes and onions in an air fryer. However, this may vary depending on the model of your air fryer, so you may need to adjust the cooking time accordingly.
Russet potatoes are a good option as they can be peeled or unpeeled and will give you crispy results. Other options include red, gold, or yellow potatoes.
Yellow, white, or sweet onions are good options for air fryer potatoes and onions. Cut the onions into slices or cubes, ensuring they are not too small, as they may fall through the holes of your air fryer basket.
You can use a variety of seasonings such as salt, black pepper, garlic powder, paprika, oregano, red chilli, Italian seasoning, or brown sugar. You can also add a squeeze of lemon and some parsley for garnish.











































