In many English-speaking countries outside North America, including the United Kingdom, the most common word for a crisp cookie is biscuit.The term cookie is normally used to describe chewier ones. However, in many regions both terms are used. The container used to store cookies may be called a cookie jar. In Scotland the term cookie is sometimes used to describe a plain bun. Cookies that are baked as a solid layer on a sheet pan and then cut, rather than being baked as individual pieces, are called in British English bar cookies or traybakes.
Cookies are most commonly baked until crisp or just long enough that they remain soft, but some kinds of cookies are not baked at all. Cookies are made in a wide variety of styles, using an array of ingredients including sugars, spices, chocolate, butter, peanut butter, nuts, or dried fruits. The softness of the cookie may depend on how long it is baked.