Lightly salted boiled peanuts are considered a wonderful, addictive snack by the Vietnamese. They should be eaten right away because they do not keep for very long.
2cupsraw peanuts, with shells
Wash the peanuts thoroughly in a colander under running warm water. Then soak them in a bowl of cool water for about 15 minutes.
Drain the peanuts and put them in a large saucepan. Cover them with the 4cups of water, and add 1tablespoon of the salt. On medium heat, let the peanuts cook at a rolling boil for a total of 30 minutes, uncovered. Add another tablespoon of salt after the first 15 minutes of boiling. (The salt is not added all at once because the shells tend to absorb it too quickly.)
Drain and serve warm with a bowl to put the shells in.