Nettle Pudding
In 2007, Nettle Pudding—a dish dating back 6,000 BC—was recognized as Britain's oldest recipe. It was a mainstay of Stone Age man, who created it by combining barley flour, salt, water, and nettles and other greens, such as dandelion and sorrel. Smoky stew (made with bacon and smoked fish) and meat pudding (an early form of sausage and haggis) are almost as old.