Preheat your air fryer to 360°F for about 5 minutes.
Wash and peel the potatoes. Cut potatoes into evenly sized fries, about 1/4 inch thick.
Place the potato fries in a large mixing bowl and cover them with cold water. Allow them to soak for 30 minutes to remove excess starch.
After soaking, drain the fries and pat them dry using a kitchen towel or paper towels.
Place the dried fries back into the bowl and drizzle with avocado oil. Toss well to ensure all the fries are coated.
Sprinkle salt and pepper over the oiled fries and toss again to evenly distribute the spices.
Carefully transfer the seasoned fries to the preheated air fryer basket. Make sure they are arranged in a single layer without overcrowding. You may need to cook them in batches.
Cook the fries in the air fryer for 20-25 minutes, shaking the basket every 5 minutes to ensure even cooking. The fries should turn golden brown and crispy.
Once cooked, remove the fries from the air fryer and let them cool for a few minutes before serving.
Serve the homemade air fryer fries hot with your favorite dipping sauce or as a side dish to your main meal.