Spray potatoes with non stick cooking spray. Coat with coarsely ground salt and pepper and cook using the method of your choice below.
Oven Method: Prick potatoes with a fork several times, wrap in aluminum foil, and cook at 350°F for approximately 1 hour or until centers are hot and tender.
Crockpot Method: Prick potatoes with a fork several times, wrap in aluminum foil, and cook in the slow cooker for 3-4 hours on high or 6-7 hours on low.
Microwave Method: Prick potatoes with a fork several times, and starting with 6 minutes, cook in the microwave on high. Check potatoes regularly to see if they are done, adding time in 1-2 minute increments until they are cooked through.