Nigel Slater's Great British Biscuit on BBC 4

Nigel Slater charts the origins of the humble biscuit tomorrow night on BBC 4. He explores the history of our most famous brands, uncovering the Georgian and Quaker origins of the biscuits we love and eat today, meeting eccentric biscuit anoraks who have dedicated their lives to a love of these simple baked treats and meeting scientists who squash, dunk and ignite biscuits for research purposes.

Tomorrow night on BBC 4 at 9pm