Rhubarb Jam

Rhubarb has a very long history, but not as a culinary ingredient. It was first used as a purgative, both in its native Asia, from where it was imported in dried form, and in the Middle East and Europe by the ancient Greeks and Romans. In the 17th century, live plants were brought to Britain, but it was not until the 18th century that the stalks (now of a rather less digestively awkward variety) started to be used in sweet tarts. Consumption remained very low until a London plant breeder in