Prepare: Using a sharp knife or mandoline, slice sweet potato into uniform 1/8 inch rounds. Place slices in cold water and soak for 20 minutes to remove excess starch. Drain and thoroughly pat dry with paper towels

Season: In a large bowl, drizzle oil over dried sweet potato slices. Sprinkle with salt, thyme, black pepper, paprika and cayenne if using. Toss gently to evenly coat all pieces

Cook: Air fry at 360°F / 182°C for 19-22 minutes, shaking the basket every 5 minutes for even cooking. Chips should be golden brown with slightly curled edges

Rest: Remove chips to a paper towel-lined plate. They will continue to crisp up as they cool to room temperature