The Delicious History of Supplejack: A Hearty Sandwich from the UK and Ireland

Supplejack is a colloquial term that originated in the UK and Ireland, particularly in the north of England and Scotland. It refers to a type of sandwich made with a filling of mashed potatoes, scrambled eggs, and sausages or bacon, all wrapped up in a slice of bread. The name "supplejack" is believed to have come from the idea that the sandwich was a "soft" or "supple" version of a traditional jacket potato, which is a baked potato filled with various ingredients.

The supplejack has become a popular dish in certain parts of the UK and Ireland, particularly in working-class communities where it is often served as a hearty breakfast or lunch option. It is also sometimes referred to as a "breakfast sandwich" or a "full English breakfast on a roll." The exact ingredients used in a supplejack can vary depending on the region and personal preferences, but the basic components of mashed potatoes, eggs, and sausages or bacon are typically present.