Slice the ends off each sweet potato and cut them into wedges. Combine salt, pepper, smoked paprika, cayenne, cinnamon, onion powder, and garlic powder to make a seasoning blend.
Pour oil over the sweet potato wedges and toss to coat them. Pour the seasoning blend into the bowl and toss again to coat.
Preheat air fryer to 350F for 5 minutes. Arrange sweet potato wedges in an air fryer basket. Make sure that the wedges are not touching - you may need to cook them in more than one batch.
Air fry the seasoned sweet potato wedges at 350F for 8 minute. Remove them from the air fryer, flip them, and return them to cook for another 4-8 minutes (exact timing will depend on your particular air fryer, but you will want the inside to be fork tender.) Allow them to cool slightly and enjoy!
Notes
Cut into even sized wedges - to ensure even cooking throughout the whole batch, try to cut the wedges into similar sizes. This can take some work because sweet potatoes come in many different shapes and sizes!
Add a pinch of cayenne - balance the sweetness of the potatoes with a pinch of cayenne pepper powder! If you are worried it will be too spicy, you can use a teaspoon of chili powder instead.
Leave some space between each wedge - for crispy edges and a soft texture inside, leave some space between each wedge on the air fryer tray. This allows the for the air to circulate evenly around the sweet potatoes and create perfect crispy wedges.