 Manufacturers complained about having to produce different labels for different states and the Western Australian government changed the rules on the use of the word "butter" to allow for one set of labels.Peanut butter may be made from peanut paste mixed with a stabilizing agent, a sweetening agent, salt, and optionally, an emulsifying agent.In such formulas, peanut paste acts as the main ingredient in peanut butter, from 75% to as much as 99% of the recipe.