Slice each potato across the top but not all the way through.
Place the potatoes in an oven proof dish. Drizzle a little olive oil across the potatoes, into the slices. Sprinkle with freshly grated salt and pepper (and herbs if you wish).
Preheat oven to180- 190*C. Put potatoes in to bake for approx 70 mins or until cooked and browned. Serve.