Preheat the oven to 350 degrees.
Wash the potatoes and place them directly on the oven baking rack. Bake for 45 to 60 minutes, until very tender when pierced with a skewer.
When the potatoes are done, cut them down the middle and squeeze both ends. Place a slice of butter in the middle of the potato, sprinkle with salt and pepper and serve hot.
2011, Ina Garten, All Rights Reserved