To make a baked potato in an air fryer, follow these simple steps:

1. Choose medium-sized Russet potatoes. Scrub them clean under running water and dry thoroughly.
2. Use a fork to poke the potatoes 4-5 times all over to allow steam to escape during cooking.
3. Rub the potatoes with olive oil or cooking spray to coat the skin evenly, then sprinkle with salt.
4. Place the potatoes in the air fryer basket without overcrowding to ensure air circulation.
5. Cook at 400°F for about 35-45 minutes, flipping halfway through. Cooking time depends on potato size; 7 oz potatoes take around 35 minutes, 8 oz around 40 minutes, and 9 oz or larger about 45-50 minutes.
6. Test doneness by piercing the potato with a fork; it should easily go through.
7. Remove and let cool slightly before slicing open and adding your favorite toppings.

This method yields potatoes with crispy skin and fluffy insides, perfect for toppings like butter, sour cream, cheese, or bacon bits.