A cookie is a baked or cooked snack or dessert that is typically small, flat and sweet. it usually contains flour, sugar, egg, and some type of oil, fat, or butter. it may include other ingredients such as raisins, oats, chocolate chips, nuts, etc. in most english-speaking countries except for the united states, crunchy cookies are called biscuits. many canadians also use this term. chewier biscuits are sometimes called cookies even in the united kingdom. some cookies may also be named by their shape, such as date squares or bars. biscuit or cookie variants include sandwich biscuits, such as custard creams, jammie dodgers, bourbons and oreos, with marshmallow or jam filling and sometime...

Source: Wikipedia