Peel and slice sweet potatoes into 1/2 inch thick strips. In a medium sized mixing bowl, combine sweet potatoes and olive oil until the potatoes are fully coated.
Toss parsley, red pepper flakes, salt, and pepper in a medium sized mixing bowl until potatoes are fully coated.
Transfer seasoned potatoes to the preheated air fryer and cook for 10 minutes. After 5 minutes, remove the air fryer tray, shake the sweet potato fries around and place back in the air fryer for another 5 minutes or until they are crisp to your liking. Garnish with fresh chopped parsley.