Whether you're looking for a new accompaniment to the Sunday roast or trying to figure out what exactly to do with freekeh, Grains is an indispensable guide to oats, chia, farro, barley, lentils - and everything in between. Offering up recipes for every occasion and appetite, from Sunday fry-up fare (Buckwheat galettes with bacon, eggs and gruyere) and morning tea (Apple, sour cream and cinnam…