Wash and roughly peel potatoes. At first cut round shape in vertically as shown in the picture. Then cut vertically thin slices.

Boil to glasses of water and these potato slices cook for a minute then drain it.

Totally fat dry with help of a cloth and keep it aside for 10 minutes spread some butter in baking tray. Spread these potato slices garnish with salt pepper powder and Oregano. Bake it for 25 minutes in 180 degree Celsius.