Apple butter

Apple butter is a highly concentrated form of apple sauce produced by long, slow cooking of apples with apple juice or water to a point where the sugar in the apples caramelizes, turning the apple butter a deep brown. The concentration of sugar gives apple butter a much longer shelf life as a preserve than apple sauce. The roots of apple butter lie in Limburg (Belgium and the Netherlands) and Rhineland (Germany), conceived during the Middle Ages, when the first monasteries (with large orchards) appeared. The production of the butter was a perfect way to conserve part of the fruit production of the monasteries in that region, at a time when almost every village had its own apple-butter producers. The production of apple butter was also a popular way of using apples in colonial America, well into the 19th century. The product contains no actual dairy butter; the term butter refers only to the butter-like thick, soft consistency, and apple butter's use as a spread for breads. Sometimes seasoned with cinnamon, clove, and other spices, apple butter is usually spread on bread, used as a side dish, an ingredient in baked goods, or as a condiment. Apple butter may also be used on sandwiches to add an interesting flavor, but is not as commonly used as in historical times.

Source: Wikipedia