Peanut butter is a type of moist paste that is made of crushed roasted peanuts. There are two kinds of peanut butter: "crunchy/chunky" peanut butter and "smooth/creamy" peanut butter. It can be eaten, for example on bread, usually with jelly to make a peanut butter and jelly sandwich or a peanut butter sandwich with only peanut butter. Marcellus Gilmore Edson was the real inventor, not George Washington Carver.