Bake your potatoes whole for about 30-45 minutes until they are just beginning to get soft. They should be about 80% cooked by this point.
Allow potatoes to cool for about 1 hour, or until they are cool enough to handle comfortably.
Preheat oven to 400°F or Air Fryer to 370°F
Peel your cooled potatoes, the skins should peel off easily by hand, then dice into 1 inch cubes.
Toss cubed potatoes with the oil, place on a baking sheet so they are not crowding each other. You want a little bit of space between your potatoes so that they get extra crispy!
Cook your potatoes for 15-20 minutes until golden brown and crispy, stirring about half way through. Season with salt while they are hot out of the oven. Enjoy!