Air Fryer Sweet Potato Fries
Why this recipe works
- Better edge crispness: A light cornflour coating helps the fries brown at the edges without needing deep frying.
- Sweet and savoury balance: Smoked paprika, garlic and black pepper give the fries savoury depth against the natural sweetness of the potato.
- Simple technique: Evenly cut fries, a single-layer air-fryer basket and salting after cooking keep the method easy to manage.
Get the most out of this recipe
Texture tips
- For crisper fries: Keep the fries in a single layer and cook in batches if needed; trapped steam is the main reason sweet potato fries turn soft.
- Salt at the end: Seasoning with salt after air frying helps it cling to the hot fries without drawing out moisture before they cook.
- Cut evenly: Aim for similar thickness throughout so the thinner pieces do not overbrown before the larger ones are tender.
Ingredient notes
- Choose firm sweet potatoes: Firm, smooth sweet potatoes are easier to cut cleanly and hold their shape better than wrinkled or soft ones.
- Paprika choice matters: Smoked paprika gives a gentle barbecue-style note, while hot paprika can be used for a more peppery batch.
- Use a neutral oil: Sunflower oil keeps the seasoning clean and lets the sweet potato flavour come through; olive oil gives a richer taste.
Common mistakes
- Overfilling the basket: Too many fries in the basket block airflow, so the potatoes steam instead of browning properly.
- Expecting deep-fried crunch: Sweet potato fries are naturally softer than regular potato fries, even when air fried; the goal is browned edges with tender centres.
- Leaving them to sit: Serve the fries straight away, as they lose crispness quickly once they begin to cool.
Make-ahead tips
- Prep ahead carefully: The sweet potatoes can be peeled and cut ahead, but coat them with cornflour, spices and oil just before cooking for the best texture.
- Reheat in the air fryer: Leftovers can be reheated at 190°C (375°F) until piping hot, though they will be softer than freshly cooked fries.
- Best served fresh: These fries are at their best immediately after cooking, when the edges are still browned and the seasoning clings well.
Equipment you'll need
Ingredients
Instructions
- Peel the sweet potatoes (or leave the skins on if you like), then cut into fries about 1 cm thick and as even as you can. Put them in a mixing bowl and sprinkle over the cornflour, smoked paprika, ground garlic and black pepper. Toss until evenly dusted, then drizzle in the sunflower oil and toss again until lightly coated.
- Arrange the fries in the air-fryer basket in a single layer, working in batches if needed. Air fry at 200°C (390°F) for 10 minutes, then shake the basket well. Continue to air fry for 8 to 12 minutes until browned at the edges and tender inside, shaking once more halfway through.
- Tip the hot fries into a bowl and season immediately with the fine sea salt, tossing to coat so it sticks. Serve straight away for the best texture.
Recipe notes
Tips
- Cook in batches: overcrowding traps steam and makes sweet potato fries soft.
- Keep the fries a consistent thickness so they finish at the same time.
- Salt after cooking, not before, to avoid drawing out moisture.
Substitutions
- Replace sunflower oil with olive oil for a richer flavour.
- Replace smoked paprika with hot paprika for a spicier batch.
Storage
- Refrigerate up to 2 days
- Best served immediately. Refrigerate leftovers and reheat in the air fryer at 190°C (375°F) for 4 to 6 minutes until piping hot; they will be less crisp than freshly cooked.
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Recipe overview
- Servings: 3 servings
- Total time: 35min (15min active)
- Difficulty: Easy
- Cuisine: American
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