Peanut butter is a food product usually consisting of roasted and ground peanuts, sometimes sweetened. It is commonly sold in grocery stores, but can be made at home. Many styles are available, from creamy to crunchy. Creamy peanut butter is made by grinding all of the mixture very finely. The crunchier styles leave portions of the mixture with a coarser grind, resulting in larger pieces of peanut interspersed with the creamier fine ground mixture.
Also useful as a bait in mouse traps, as mice love it.