Slow Cooker Baked Potatoes

4 baking potatoes, well scrubbed

1 tablespoon extra virgin olive oil

kosher salt to taste

4 sheets aluminum foil

Prick the potatoes with a fork several times, then rub potatoes with olive oil, sprinkle with salt, and wrap tightly in foil. Place the potatoes into a slow cooker, cover, and cook on High for 4 1/2 to 5 hours, or on Low for 7 1/2 to 8 hours until tender.