Toppings for potatoes: butter, sour cream, cheese, chives, bacon etc.
Wash and dry the potatoes. Stab with a fork a few times, or cut a slit.
Wrap in foil. Place directly into the base of the slow cooker. Pile them high. But not so high that the lid won't fit tightly. (No water needed.) SEE NOTE BELOW
Cook on low for 10 hours, or high for 6 hours.
Pull out of the slow cooker and let cool slightly before handling. Cut them open, slather on all of your favorite tater toppings...and enjoy!