Cookies are easy to prepare and store well, making them popular for the food service industry. Key factors that make a good cookie are flavor from high quality ingredients measured exactly, texture which depends on fat and moisture content, and appearance from uniform shaping and correct baking temperature. There are two mixing methods - one stage simply combines all ingredients while creaming mixes butter and sugar first. Cookies are formed by dropping, rolling, pressing, spreading in sheets, forming dough logs then slicing, or portioning dough into bars.