A chip butty, chip sandwich, chip barm, chip batch, chip roll, chip muffin, piece an chips or chip piece (in Scots) is a sandwich made with bread or a bread roll (usually white and buttered) and chips, often with some sort of sauce such as tomato sauce (i.e. ketchup) or brown sauce. The word butty is a contraction of "bread and butter" that came from northern England, perhaps Yorkshire or Liverpool.The chip butty was originally considered a working-class meal and was served in pubs.