He loved champagne and brandy, roast beef and stilton. But it seems the Nazis were hoping that Winston Churchill had a sweet tooth as well.
German secret agents apparently plotted to assassinate Britain's wartime leader using a bar of exploding chocolate.
Hidden papers suggest they planned to smuggle a bomb disguised as confectionery into the Cabinet War Rooms in 1943.
Covered in a layer of real plain chocolate and wrapped in black paper with gold lettering, the bomb would be packed with enough explosive to kill anyone within several yards. It would be set off when one end was broken.
After British agents tipped off MI5 about the plot, Lord Victor Rothschild, then head of its counter-espionage section, asked illustrator Laurence Fish to produce a poster warning the public of the danger of the chocolate bars.