is the name of a simple topping spread instead of pastry on fruit pies of the dish type with no bottom crust, such as are popular in Britain. Recipes for crumble do not appear in old books of English recipes, nor is it recorded until the 20th century. Crumble is much quicker and easier to make than pastry and it seems probable that it developed during the Second World War. It is like a sweet pastry made without water. The ingredients of a modern crumble are flour, butter, and sugar; a little spice is sometimes added. (The original wartime type used some other fat—whatever was available.) The butter is cut into the dry ingredients, and the mixture spooned onto the pie filling without further preparation, after which the pie is baked. The butter melts and binds the solid ingredients into large grains, but they do not form a solid layer like a true pastry. The texture can only be described as crumbly. Apple crumble is probably the best-known form. But other fruits are often used. Numerous variations are permissible, for example the addition of coconut to the crumble mixture in Australia.
Crumble may have been inspired by a similar cinnamon-flavoured topping traditional in Austria and C. Europe for a rich tea bread or cake. The topping is called Streusel, and the cake Streuselkuchen (German streusen, to scatter). Streusel contains much less flour in proportion to sugar than British crumble, so that when baked it has a crisp and granular rather than crumbly texture, and remains firmly attached to the top of the cake. It is spread over a coating of melted butter on the raw cake, which helps it to adhere.
Alan Davidson was a distinguished author and publisher, and one of the world's best-known writers on fish and fish cookery. In 1975 he retired early from the diplomatic service—after serving in, among other places, Washington, Egypt, Tunisia, and Laos, where he was British Ambassador—to pursue a fruitful second career as a food historian and food writer extraordinaire. Among his popular books are Seafood of South-East Asia, North Atlantic Seafood, and Mediterranean Seafood. In 2003, shortly before his death, he was awarded the Erasmus Prize for his contribution to European culture.