Nowadays, sausages and other processed foods are allegedly the devil’s work. Extremely bad for the body. But who can easily give up a lovely sticky, slow-cooked pork sausage? Not I. Especially if you’ve ever read Nigel Slater’s description of the joys of a sausage sandwich. Nothing else will do. It is fortunate then, that supernatural helper, YouTube, and a Food Processor have come to the rescue for making less-bad-for-you, and more economical,...