If you feel like a very quick sweet treat, this is the book for you. Prepare and cook a delicious crumble in five minutes flat. With 30 quick and easy crumbles to make, all you need is a microwave, the ingredients and a mug! How about cinnamon and apple, pear with gingerbread and white chocolate, peach and strawberry biscotti, or even the unusual olive, tomato and parmesan mug crumble? Hardback 70 pages. Yum, Yum!