Peel the potatoes, then cut them into thin strips, about 1/4-inch in width.
Put the fries in a big bowl of cold water and let them soak for 30 minutes to help them get crispy. Drain the bowl.
Dry the bowl and the potatoes well with a paper towel or kitchen towel. Add the dried off fries to the bowl and add the olive oil, smoked paprika, garlic powder, onion powder, salt, and pepper. Mix well until they're well coated.
Sprinkle cornstarch over the fries and mix them again until it's evenly distributed.
Preheat the air fryer to 380 degrees F. Air fry them in a single layer for 15 to 20 minutes, flipping the fries halfway through the cooking time, until they get crispy and golden brown.
Video
Notes
Soak the potatoes to help remove excess starch for crispier fries. They can even soak overnight.
Dry the potatoes well so the oil sticks and the fries crisp instead of steaming.
Layer in a single batch so the air can circulate. Always work in batches when making a big portion to avoid overcrowding the basket.
Flip the fries halfway through the cooking time so both sides get golden brown.
Store leftovers in an airtight container in the fridge for up to 3 days.
Reheat leftovers in a preheated air fryer at 350 degrees F for 2 to 3 minutes until hot and crispy again.
This nutrition information is based on the exact products I used in this recipe. Brands and sizes of products could alter exact nutrition and should always be calculated independently.