Take previously baked potatoes that are cold from the fridge, cut them in half and using the palm of your hand smash them. You don't want them to be completely flat - all those nooks and crannies are tasty when they get crispy.

Place the smashed potatoes onto the frying rack - skin side down. I don't preheat my air fryer, I put them in a cold oven and set it to 400 degrees for about 20 minutes. Exactly how long will depend on how big the potatoes are, how much moisture they have and how hot your air fryer gets. Check on them after 15-20 minutes and adjust the time to your liking. Dip them in your favorite sauce - see the options I listed above.