Turn your air fryer to 400F and let it preheat for 3-5 minutes.

Place the sweet potato fries at the bottom of the air fryer basket in a single layer.

Set the timer to cook for 12 minutes. You may not need all of that cooking time. At the 7 minute mark, give them a shake or toss with tongs to evenly expose them to the air. Cook for the remaining 3-5 minutes.

Once the sweet potato fries or waffle fries are crispy on the outside and tender on the inside, remove them from the air fryer basket with tongs and serve with your favorite dipping sauce including ketchup, barbecue sauce, ranch, or a sprinkling of sea salt and black pepper for a bit more spice.