What is both a tool of empire and a sweet indulgence? What is a cleanser of sins and the basis of beer brewing? Biscuits! Lizzie Collingham's history of 'a very British indulgence' continues her unique capacity to enrich our understanding of connections between food and change in world history. Her latest book on The Biscuit follows her earlier, much acclaimed books, Curry, The Taste of War, and Hungry Empire.