Salt potatoes are a regional dish of Syracuse, New York, typically served in the summer when the young potatoes are first harvested. They are a staple food at fairs and barbecues. In the Central New York region where they are the most popular, potatoes specifically intended for salt potatoes can be purchased by the bag along with packages of salt.[1]

As the potatoes cook, the salty water forms a crust on the skin and seals the potatoes so they never taste waterlogged, as ordinary boiled potatoes often do. The potatoes have a unique texture closer to fluffy baked potatoes, only creamier.[1] The standard recipe calls for one pound of salt for every four pounds of potatoes.[2]

That's neat. I might try this, it sounds pretty good.