These air fryer sweet potato fries are crisp on the outside and soft and fluffy within, with a natural sweetness that deepens as they cook. Lightly seasoned and golden, they make a healthier alternative to traditional fries without sacrificing flavour. This is a simple, beginner-friendly recipe that delivers reliable results every time. From start to finish, you can have a fresh batch ready in under 30 minutes.
Ingredients
For the fries
- 2 large sweet potatoes, peeled
- 1½ tbsp cornflour
- 1½ tbsp olive oil
- 1 tsp paprika
- ½ tsp garlic powder
- ½ tsp salt
- ¼ tsp black pepper
Optional seasoning
- ½ tsp chilli flakes for heat
- Fresh parsley, finely chopped
How to Make Air Fryer Sweet potato fries
- Prepare the air fryer: Preheat the air fryer to 200°C for 3 to 5 minutes. This ensures the fries begin cooking immediately and develop a crisp exterior.
- Cut the sweet potatoes: Slice the peeled sweet potatoes into even fries, about 1cm thick. Keeping them uniform helps them cook evenly.
- Soak and dry: Place the cut fries in cold water for 20 minutes to remove excess starch. Drain well and pat completely dry with kitchen paper.
- Coat the fries: Toss the fries with cornflour until lightly coated. Add olive oil, paprika, garlic powder, salt, and pepper, mixing well so each piece is evenly seasoned.
- Air fry: Arrange the fries in a single layer in the air fryer basket. Cook for 12 to 15 minutes, shaking the basket halfway through for even browning.
- Finish and serve: Cook for an extra 2 to 3 minutes if needed for extra crispness. Sprinkle with optional chilli flakes or parsley and serve immediately.

Tips
Why are my sweet potato fries not crispy?
Make sure the fries are fully dried after soaking and do not overcrowd the air fryer basket. Cooking in batches gives the best crisp texture.
Do I need to soak the sweet potatoes?
Yes, soaking helps remove excess starch, which improves crispness during cooking.
Can I skip the cornflour?
You can, but cornflour adds a light coating that helps the fries become crisp and golden.
How do I make them extra crispy?
Cook in a single layer and add a couple of extra minutes at the end, keeping a close eye to avoid overcooking.
Serving Suggestions
- Serve with garlic mayo or spicy ketchup
- Pair with grilled chicken or burgers
- Add to wraps or sandwiches for extra texture
- Enjoy as a light snack on their own
Storage
Room temperature
Best enjoyed fresh. Leave at room temperature for up to 2 hours before serving.
Refrigerator
Store in an airtight container for up to 3 days. Reheat in the air fryer to restore crispness.
Freezing
Freeze cooked fries for up to 2 months. Reheat directly from frozen in the air fryer until hot and crisp.
Nutrition
- Calories: 180 kcal
- Carbohydrates: 28g
- Protein: 2g
- Fat: 7g
- Saturated Fat: 1g
- Sodium: 220mg
These values are approximate and may vary depending on ingredients used.
FAQs
Can I make sweet potato fries without soaking?
You can, but soaking improves the texture and helps achieve a crisp finish. Skipping this step may result in softer fries.
What temperature is best for air frying sweet potato fries?
200°C works best for achieving a crispy exterior while keeping the inside soft and tender.
Can I use frozen sweet potato fries?
Yes, frozen fries can be cooked directly in the air fryer. Adjust cooking time slightly and shake halfway through.
Why are my fries burning before they crisp?
They may be cut too thin or the air fryer temperature is too high. Reduce the heat slightly and check earlier.
Air Fryer Sweet potato fries
Course: Side DishCuisine: InternationalDifficulty: Easy4
servings30
minutes40
minutes300
kcal1
hour10
minutesCrispy, golden air fryer sweet potato fries with a soft centre and lightly seasoned coating. A quick and healthier alternative to deep-fried chips.
Ingredients
2 large sweet potatoes, peeled
1½ tbsp cornflour
1½ tbsp olive oil
1 tsp paprika
½ tsp garlic powder
½ tsp salt
¼ tsp black pepper
Directions
- Preheat the air fryer to 200°C.
- Cut sweet potatoes into even fries.
- Soak in cold water, then dry thoroughly.
- Coat with cornflour, oil, and seasonings.
- Air fry for 12–15 minutes, shaking halfway.
- Cook a few minutes longer if needed until crisp.
- Serve immediately while hot and crispy.
Notes
- Do not overcrowd the basket for best results.
- Soaking improves texture and crispness.
- Best served fresh for maximum crunch.
