Bacon butty

A bacon sandwich is a sandwich of cooked bacon. It may be spread with butter, and may be seasoned with brown sauce or tomato ketchup. It is generally served hot. In some establishments the sandwich will be made from bread toasted on only one side, while other establishments serve it on a similar roll as is used for hamburgers. Bacon sandwiches are an all-day favourite throughout the United Kingdom and Ireland. They are often served in British cafes and delis, and are anecdotally recommended as a hangover cure.

Source: Wikipedia