Add the butter, salt and pepper to a small saucepan and melt butter over low heat.
Scrub the potatoes and peel a strip away from the center of each potato.
Add potatoes to the saucepan, cover, and cook over low for 25 to 30 minutes.
Sprinkle the potatoes with the parsley.
No need to add water. Potatoes are 80% water. As they cook they will release water into the butter to create a sauce.