Wash 6 medium sweet potatoes. There is no need to dry them. Use a fork to pierce each sweet potato 6–8 times in different spots.
Place the sweet potatoes in the crock pot in a single layer. Do not add any water - the moisture from washing them is all you need.
Cover and cook on low for 6-7 hours or on high for 3-3.5 hours until a knife can easily be inserted and removed and the sweet potatoes are soft when squeezed gently.
Slice each sweet potato open and top with the butter, salt and pepper.
Serve warm and enjoy.
Notes
No water needed. Wash the sweet potatoes and put them in wet. Don't add water to the crock pot.
No foil needed. They cook the same unwrapped.
Size matters more than the clock. Medium (8 oz) potatoes take 6-7 hours on low. Large ones can take 8+. Start checking at 6 hours.
Holding for dinner. Once tender, switch to warm to hold them until you're ready to serve.
Delicious topped with butter, brown sugar and marshmallows. The toppings listed are not included in the nutritional information.