Also on these boards
Slice potato almost but not all the way through. Tuck butter and parmesan pats between potato slices. Bake at 400 until tender (45 min - 1 he). Dribble with sour cream. Shower with grated cheese. Bake again until melted. Lavish with more sour cream and chopped scallion or crumbled bacon or chili or whatever you please.