Cut the potatoes with a plane into slices as thin as paper if possible. Let them soak in cold water for a little time to wash out the starch; then put them into fresh water with a piece of ice to thoroughly chill them. Drain a few of the slices at a time, dry them on a napkin; put them in a frying basket and immerse them in smoking-hot fat. Keep them separated, and remove as soon as slightly colored. Turn them into a colander to drain, and sprinkle them with salt. When the second lot are fried turn those in the colander onto a paper in the open oven, and so on until all are done. Saratoga potatoes should be perfectly dry and crisp. They may be used hot or cold, and will keep for some time in a dry place. If wanted hot, place them in the oven a moment before serving.