Should you soak the sweet potato slices in water first to remove the starch? We tested this several times in different air fryers and did not see a difference in results from soaking. In fact, we found that not soaking them in water saved time and it made cooking times quicker. The potato chips were still crunchy and delicious. But some people swear by the soaking method. We added the soaking technique in the recipe too so you can have both options. See more recipe NOTES below.
about 1 Tablespoon (30ml) oil spray
salt, to taste
pepper, to taste
optional: ground cumin, garlic powder or onion powder or paprika
Optional - Add sweet potato slices to bowl of cold water for at least 20 minutes. Remove and pat dry with towel.
Pre-heat Air Fryer at 340°F/170°C for 5 minutes.
Place sweet potato slices in a bowl and spray with oil, season with salt, pepper or optional spices. Toss to evenly coat all sides with the oil and seasonings.
Spray the air fryer basket/tray with oil to minimize sticking. Lay slices in single layer, trying to not overlap.
Initial Browning: Air Fry at 340°F/170°C for 10 minutes. Flip and separate any touching slices.Continue to Air Fry at 340°F/170°C for 3-5 minutes increments or until they start to crisp on the edges. Separate the slices so they don’t stick together and this helps the chips crisp on both sides. Look for crispy brown sides because this is what makes them crunchy. But don’t let them burn. Check out our photos for reference.
Finishing: When you see crisp brown edges, reduce heat to 280°F/140°C and Air Fry for another 2-5 minutes or until they are dry. The chips will become crunchier when they are completely cool.If some of the chips are a still little chewy, then remove the crunchy ones and continue to Air Fry the chewy chips at 280°F/140°C for another 3 minutes or until crispy.
Cooking times will vary depending on the thickness of your sweet potatoes, how much you cook and the size of your air fryer. Try to choose a wider sweet potato, as the slices will shrink quite a bit. The smaller the slices are, the harder they are to handle and flip.Avoid cooking too many slices in multiple layers because you will get un-even cooking. It’s better to air fry single layers in multiple batches than one big batch.