Slice potatoes into thick cut fries shapes. I personally prefer leaving the skin on, however you can also peel the potatoes.
Soak in a bowl of cold water for 20 minutes.
Dry the potatoes well, dress with olive oil and season with oregano, salt & pepper. With your hands, toss and massage all ingredients in a bowl to ensure all are coated.
Air Fryer
Heat air fryer to 180°C/350°F and place potatoes in to cook
Take out after 10 minutes, shake fries around and place back into the air fryer.
Check after 8 minutes to ensure they are cooked to your liking and serve on a plate (note if you prefer them very crunchy, they may need an extra 3-5 minutes).
Season with salt, crumble over feta
Oven
Preheat oven to 200°C/400°F
Cook for 25-30 minutes
Remove from oven, season with salt, crumble over feta