India Langley, from The Community Farm, Chew Magna, takes a fresh look at onions – that staple ingredient that’s often overlooked. “We grow salad onions, leeks and shallots at The Farm. These crops belong to the allium family. We plant our alliums into beds that are covered with an organic corn starch film. The film looks like black plastic, but naturally breaks down into the soil in six to nine months.