Preheat the Air Fryer: Begin by preheating your air fryer to 375°F (190°C). This ensures that it's nice and hot when you start cooking.

Prepare the Potatoes: Wash and scrub the potatoes thoroughly, removing any dirt or debris. You can choose to peel them or leave the skin on for added texture and flavor. Then, cut the potatoes into bite-sized pieces. For even cooking, aim for uniform sizes.

Season with Olive Oil: In a large mixing bowl, drizzle the potato pieces with olive oil. Toss them gently to ensure that each piece is lightly coated with oil. This step helps achieve that beautiful crispiness.

Add Rosemary and Seasonings: Strip the fresh rosemary leaves from the stems and roughly chop them. Sprinkle the chopped rosemary over the oiled potatoes. Season generously with salt and freshly ground black pepper. The rosemary will infuse the potatoes with its aromatic flavor.

Toss and Coat: Gently toss the potatoes in the bowl to evenly distribute the rosemary, salt, and pepper. Make sure each piece is coated with the seasonings.

Load the Air Fryer Basket: Place the seasoned potato pieces in the air fryer basket in a single layer. Avoid overcrowding, as this can affect the crispiness. If necessary, cook in batches.

Air Fry: Set the air fryer to cook at 375°F (190°C) for 15-20 minutes. Cooking times may vary depending on your air fryer model and the size of your potato pieces. Be sure to shake the basket or flip the potatoes halfway through the cooking time to ensure even browning and crispiness.

Check for Doneness: After the allotted time, check the potatoes for doneness. They should be golden brown and crispy on the outside while tender on the inside. If they need more time, you can continue air frying in 5-minute increments until they reach your desired level of crispiness.

Serve Hot: Once your Roasted Rosemary Potatoes are perfectly cooked, transfer them to a serving dish and serve immediately while they're still hot and irresistibly crispy.