To cook small potatoes in an air fryer, follow these steps:

1. Preheat the air fryer to around 400°F (200°C).
2. Wash and dry small (baby) potatoes. If some are larger, cut them in half to ensure even cooking.
3. Toss the potatoes with melted butter or olive oil, and season with salt, herbs (like oregano, rosemary, or thyme), and spices of choice.
4. Place the potatoes in a single layer in the air fryer basket, avoiding overcrowding.
5. Cook for about 14-20 minutes, shaking or turning the potatoes halfway through to ensure even browning.
6. Check doneness by piercing a potato with a fork—it should be tender inside.
7. Serve immediately; leftovers can be reheated in the air fryer for a few minutes to regain crispiness.

This method produces crispy, flavorful small potatoes quickly and easily, perfect as a side dish.