Jo Brand unwraps the nostalgic story of sandwiches and how this iconic snack evolved from a curly 1970s joke to today's modern, pre-packaged sandwiches. The brains behind the industry's biggest names reveal how the Marks & Spencer sandwich spawned a market fuelled by competition, with Pret a Manger revolutionising the look and feel of sandwich shops and the rivalry of mass-market mega chains Greggs and Subway, ensuring that the sandwich dominates our high streets.
