Air Fryer Sweet Potato Fries
By Nora WhitfieldPublished Nov 8, 2026
Crispy, golden sweet potato fries made in the air fryer with just a little oil.
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Air Fryer Sweet Potato Fries are crisp on the outside and soft in the middle. A little cornstarch and a hot air fryer give them a crunch that is hard to get in the oven.
They make an easy side dish for burgers, sandwiches or chicken, and they are just as good as a snack with a creamy dip.
Why You’ll Love This Air Fryer Sweet Potato Fries
- Crispy without deep frying
- Lightly sweet and savory
- Ready in about 30 minutes
- Great for kids and adults
Ingredients You’ll Need
Choose evenly sized sweet potatoes. Cut the fries about 1/4 inch thick so they crisp. Cornstarch helps create a crispy coating.
How to Make Air Fryer Sweet Potato Fries
Cut the potatoes into thin sticks, soak briefly, dry well and toss with oil, cornstarch and seasonings. Air fry at 400°F in a single layer, shaking halfway.
Tips for the Best Air Fryer Sweet Potato Fries
- Soak the cut fries in water for 20 minutes
- Dry them very well before seasoning
- Cook in batches so they do not steam
- Serve right away for the best crunch
Variations
- Season with cinnamon and a pinch of sugar
- Add smoked paprika and garlic powder
- Serve with chipotle mayo
How to Store and Reheat
Best fresh. Refrigerate for up to 3 days and reheat in the air fryer at 400°F for 3 to 4 minutes.
Why This Air Fryer Sweet Potato Fries Works
Air Fryer Sweet Potato Fries work because the hot circulating air crisps the outside while the inside turns soft and sweet. Sweet potatoes contain more sugar and moisture than regular potatoes, which can make them soggy, so a few small steps make a big difference in texture.
Soaking the cut fries in cold water removes extra starch, and drying them very well keeps them from steaming. A light dusting of cornstarch then absorbs remaining moisture and creates a thin crisp coating that helps the fries stay crunchy longer.
Ingredient Notes and Substitutions
- Sweet potatoes: Choose medium, even-sized potatoes so the fries cook at the same rate
- Cut size: Aim for sticks about 1/4 inch thick. Thicker fries stay softer, thinner fries crisp faster but can burn
- Cornstarch: It helps crisping. Arrowroot or potato starch also works
- Seasoning: Paprika, garlic powder and salt are savory. Cinnamon and a pinch of sugar make a sweet version
- Dips: Chipotle mayo, garlic aioli, ranch or a yogurt-honey dip are tasty
Common Mistakes to Avoid
- Skipping the soak and dry steps, which leaves fries soft
- Overfilling the basket, which steams the fries
- Cutting pieces of different thickness so some burn while others are soft
- Waiting too long to serve, since sweet potato fries lose crispness quickly
What to Serve With Air Fryer Sweet Potato Fries
Sweet potato fries go with just about anything. Serve them next to burgers, grilled chicken, turkey sandwiches or air fryer salmon. They are also a fun snack on their own with a creamy dip. For a lighter plate, add a crisp green salad or raw vegetables. Make a double batch, because they disappear fast.
Frequently Asked Questions
Why are my sweet potato fries soggy?
Overcrowding or too much moisture is the usual cause. Dry them well and cook in batches.
Do I need to peel the potatoes?
No. The skin is edible and adds texture.
How long do they take?
About 15 to 18 minutes at 400°F.
Why are my sweet potato fries not crispy?
Too much moisture or crowding is usually the cause. Soak, dry well, use a little cornstarch and cook in a single layer.
Can I make sweet potato fries ahead?
They are best fresh, but you can cut and soak the potatoes a day ahead and keep them in water in the refrigerator. Dry them well before cooking.
More Air Fryer Recipes to Try
Air Fryer Sweet Potato Fries
Ingredients
Method
- Cut the sweet potatoes into 1/4-inch sticks. Soak in cold water 20 minutes, then drain and dry thoroughly.
- Heat the air fryer to 400°F.
- Toss the fries with the cornstarch, oil, paprika, garlic powder and salt.
- Cook in a single layer 15 to 18 minutes, shaking the basket halfway, until crisp and browned.
- Serve hot with your favorite dip.
Notes
Meet Nora
Hi, I’m Nora Whitfield. I share make-ahead breakfasts, easy brunch ideas and crispy air fryer meals for busy days.
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