A surprising number of snack foods are purchased ready to eat. Boiled peanuts are a very popular and traditional old southern snack. They are often found at flea markets and other outdoor events in the southern US states. The going price is around $4 for about 2 cups of boiled peanuts.
According to Paula Deen boiled peanuts are quite easy to make at home. There are only three ingredients - raw peanuts, water and salt. The unshelled raw peanuts are boiled in the salt water until they are soft, about 2 hours. They are served warm. If you can't find raw unshelled peanuts in local stores they can be bought online for about $11 for 5 lb which isn't a bad price at all.