Chocolate whether emulsifying agents are added. Different manufacturers develop their own "signature" blends based on the above formulas, but varying proportions of the different constituents are used. The finest, plain dark chocolate couvertures contain at least 70% cocoa (both solids and butter), whereas milk chocolate usually contains up to 50%. High-quality white chocolate couvertures contain only about 35% cocoa butter. Producers of high-quality, small-batch chocolate argue that mass production produces bad-quality chocolate. Some mass-produced chocolate contains much less cocoa (as low as 7% in many cases), and fats other than cocoa butter. Vegetable oils and artificial vanilla flavor are often used
Chocolate chip cookie their competition. To honor the cookie's creation in the state, on July 9, 1997, Massachusetts designated the chocolate chip cookie as the Official State Cookie, after it was proposed by a third-grade class from Somerset, Massachusetts. Chocolate chip cookies are commonly made with white sugar; brown sugar; flour; a small portion of salt; eggs; a leavening agent such as baking powder; a fat, typically butter or shortening; vanilla extract; and semi-sweet chocolate pieces. Some recipes also include milk or nuts (such as chopped walnuts) in the dough. Depending on the ratio of ingredients and mixing and cooking times, some recipes