Spray the potato cubes with cooking spray (or toss with a small amount of olive oil) and season with salt & pepper.
Place the sweet potato in the air fryer and cook at 400°F(200°C) for approximately 12-14 minutes, shaking the basket at the halfway mark, until crispy and tender. Season with additional salt as desired.
Notes
To cube the sweet potatoes, it is best to use a sharp knife. Sweet potatoes can be difficult to cut, so be careful.
Serve the sweet potatoes fresh, as they lose their crunchy texture quickly.
Adjust the cooking time to make the sweet potato cubes more or less crispy - depending on your preference.
All air fryers have different wattage and may cook at different rates. You may need to adjust the time or temp for the best results.