Laura Mason brings you over 50 crumble recipes from the National Trust.  Laura Mason brings you over 50 crumble recipes from the National Trust.  Following on from the hugely successful 'National Trust Book of Scones', this is a salute to Britain's ultimate comfort food – crumbles. With over 50 crumble recipes – plus some cobblers too – you'll have the perfect recipe to cosy up with, every time. From classic recipes like apple and blackberry or rhubarb crumble to exciting new variations like crumble cheesecakes and microwavable mug crumbles for the time-challenged, this is everything you need. Plus there is a section on how to make classic accompaniments such as jam and custard, and interesting historical cooking trivia is sprinkled throughout to help you pass the time while your crumbles are in the oven.