To be honest it's not really a recipe (as per the thread title) as there's only one ingredient - potatoes. However I do roast them in the skins so that's a little different from the norm. However, Gordon Ramsey I'm not.

1. Wash potatoes but don't peel or pierce the skins.

2. Put in cold water and bring to boil until skins start to lift (about ten minutes).

3. Pop some foil in a non-metallic baking dish.

4. Liberally coat the foil with extra virgin olive oil.

5. Cut boiled potatoes in half and set them flat side down in the dish.

6. Liberally brush extra virgin olive oil on to the potatoes.

7. Pop in hot oven until brown and crispy. I use gas mark 7-8 (which I believe is about 220-230 degC) for about 45 minutes.

8. Eat them however you like, personally I like them with coleslaw.

I should add that occasionally the skins come right off the potatoes, but that's no bad thing as roasted skins are very yummy.