A 'sugar cookie' is a cookie usually made with baking soda, sugar, eggs, flour, vinegar, salt, milk and vanilla.In the mid-1700s, German Protestant settlers in the Nazareth area of Pennsylvania perfected the recipe of the sugar cookie; thus, the sugar cookie is sometimes referred to as the Nazareth Sugar Cookie. On September 5, 2001, the Commonwealth of Pennsylvania adopted the sugar cookie as its official cookie.While other types of cookies, such as the chocolate chip cookie, are usually baked and consumed in circle form, these cookies can be rolled out and cut into shapes with cookie cutters, as well as decorated with sugar sprinkles or icing. Sugar cookies, like most other cookies, are baked until crisp, although some people prefer them to be soft and chewy.Companies such as General Mills offer quick sugar cookie mixes under brand names such as Betty Crocker, which generally only need to have eggs and/or water added to them to be completed.