Wash potatoes and poke each with a fork 1-2 times. Rub with olive oil, salt and pepper.

Place in slow cooker (no water required) and cook on low 6-8 hours or until fork tender. You can also cook on high 2 1/2 - 3 hours, but you need to turn them so they don't burn on one side

If you'd like a crispier skin, potatoes can be grilled or broiled for a couple minutes before serving!