Preheat the air fryer to 400° F (200° C), for 5 minutes.
Clean the potatoes. Slice them about 1/4" thick. Put the slices into cold water for about 3 minutes to wash off the starch.
Drain the water and pat the potatoes dry. Toss them with the olive oil and salt.
Add the potatoes in a single layer in the air fryer. Cook for 14 minutes, flipping the potatoes halfway through cooking.
Serve with additional salt, if necessary.
Notes
Many potato recipes, like french fries and hashbrowns, suggest soaking or rinsing the potatoes in water before baking, to reduce the amount of starch.
If you're using very starchy potatoes, like russets, it does help a bit. We tried it both ways and found that the potatoes were pretty crispy either way. If you're in a hurry, skip it and go directly to the frying.
You can cut the potatoes into any thickness for this recipe but keep in mind that the times will change. If you cut the potato thicker, the cook time will increase to 18 minutes total.
When spraying the potatoes and basket make sure to use pure oil such as avocado, canola, or vegetable oil. Don’t use a non-stick cooking oil spray.
All air fryers have different wattage and may cook at different rates. You may need to adjust the time or temp for the best results.