(These are the best.)
Scrub four potatoes with a fork two places on each side.
Bake on a foil-lined cookie sheet at 450 for at least an hour until soft. Cool.
Scoop out centers & mix with a good-sized chunk of butter, 1/4 cup sour cream or plain yogurt, a bit of milk, salt & pepper, & some sharp cheddar cheese. Mix it to a consistency thicker than mashed potatoes.
Bake again at 350 for 15-20 minutes.

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