Potato shepherd's pie, bubble and squeak, and bangers and mash. New potatoes may be cooked with mint and often served with butter. The Tattie scone is a popular Scottish dish containing potatoes. Colcannon is a traditional Irish food made with mashed potato, shredded kale or cabbage, and onion; champ is a similar dish. Boxty pancakes are eaten throughout Ireland, although associated especially with the North, and in Irish diaspora communities; they are traditionally made with grated potatoes, soaked to loosen the starch and mixed with flour, buttermilk and baking powder. A variant eaten and sold in Lancashire, especially Liverpool, is made
Instant mashed potatoes particular have been freeze-dried since at least the time of the Inca empire, in the form of chuño; another example is in Japanese Ainu cuisine. , titled "Dehydrate Potatoes and Process of Preparing the Same", and describing a product that was to be reconstituted in hot water, was applied for in 1905 and granted in 1912. Flake-form instant mashed potatoes date back at least to 1954, when two United States Department of Agriculture researchers were issued a patent for "Drum drying of cooked mashed potatoes" (), which describes the end product specifically being "as a thin sheet or flake". In