Place the potatoes on a baking sheet. Using a fork, prick the potatoes all over. Bake until fork tender, about 1 hour. Let cool for 15 to 20 minutes, or until able to handle comfortably.

1. Preheat the oven to 425°. Pierce the potatoes with a fork and rub with oil. Bake for 1 hour, or until tender when pierced. 2. Meanwhile, in a large, deep skillet, melt the butter in the oil.