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 in slow cooker, cover, and cook on High for 4 1/2-5 hours (or low for 7 1/2-8 hours) until tender.
Nutrition Info Per Serving: Calories 314 Total Fat 4 g Cholesterol 0 mg Sodium 22 mg Potassium 1554 mg Total Carbohydrate 64 g Dietary Fiber 8 g Sugars 3 g Protein 7 g