Greg Jenner is joined by chocolate historian Alex Hutchinson and British TV legend Richard Osman to explore the culinary and cultural history of chocolate - Britain's favourite confectionery.
Just what did the Maya use to flavour their cacao? How did cacao become chocolate and find its way into our shops and hearts? And why did a family feud change the entire branding of a much loved chocolate bar?
A Muddy Knees Media production for BBC Radio 4