Radishes, as you may recall if you read my blog last June, are one of my very favourite salad veg. It is a relation of the turnip, and not surprisingly given its mild pepperiness – horseradish. It has been used since prehistoric times over a huge swathe of the Old World from Western Europe to China and Japan. There was a rumour reported by the Greek writer, Herodotus, that the slaves who built the pyramids ate them whilst they worked. He actually mentions an inscription on the Great Pyramid itself to that effect – sadly it has long since been worn away. Like the thought though of them having pocketfuls – did they have pockets? – of radishes whilst they shovelled sand and shifted rocks. Pliny in the 1st century mentions radishes up to 3kg in size (clearly not cut out for salads!) in his writing and there are records…