Mashed potato or mashed potatoes (American, Canadian, and Australian English), colloquially known as mash (British English),[2] is a dish made by mashing boiled or steamed potatoes, usually with added milk, butter, salt, and pepper. It is generally served as a side dish to meat or vegetables. Roughly mashed potatoes are sometimes called smashed potatoes. Dehydrated instant mashed potatoes[3] and frozen mashed potatoes[4] are available. Mashed potatoes are an ingredient in other dishes, such as dumplings and gnocchi.