A crisp sandwich (in British English or Hiberno-English), piece and crisps (in Scottish English), chip sandwich, chipwich, potato chip sandwich, crisp sarnie, crisp butty, or chippy sandwich (Australian English) is a sandwich that includes crisps (potato chips) as one of the fillings. In addition to the crisps, any other common sandwich ingredient may be added. Crisp sandwiches are particularly popular in Britain and Ireland. There are crisp sandwich shops in West Yorkshire as well as Belfast, both of which opened in 2015.