Cookie dough is an un-cooked blend of cookie ingredients. Cookie dough is normally intended to be baked into individual cookies before eating, however edible cookie dough is made to be eaten as is, and usually is made without eggs to make it safer for human consumption. Cookie dough can be made at home or bought pre-made in packs (frozen logs, buckets, etc.). Dessert products containing cookie dough include ice cream and candy. In addition, pre-made cookie dough is sold in different flavors. When made at home, common ingredients include flour, butter, white sugar, salt, vanilla extract, and eggs. If the dough is made with the intention of baking, then leavening agents such as baking soda or baking powder are added. However, these are often excluded in cookie doughs that are designed to be eaten raw. Chocolate chip cookie dough is a popular variation that can be made by adding chocolate chips to the mix. History Cookie dough is derived from the creation of cookies that dates back as far as 7th century Persia, where they were used as test cakes. Persia was one of the first countries to use sugar and soon became known for luxurious cakes and pastries. The early cookie was first labelled as a test cake before it was referred to as a "cookie" because the Persians would bake a small amount of cake batter in the oven to test the oven temperature, and it would come out looking like a mini cake. The concept of cookies spread and became known worldwide. They evolved into Biscuits for convenience as they were easier to keep fresh for a longer period and were simple to carry for travel. Cookies became established in Europe sometime between the 17th and 18th century, as baking gained popularity. At that time the word "cookie" was first used. The term comes from the Dutch language where Koekje means "small or little cake". During the ensuing Industrial Revolution, more cookie recipes became available. New forms and flavors of cookies continue to be created, one of which is the concept of edible cookie dough. Ruth Graves Wakefield and Sue Brides owned the Toll House Inn in Whitman, Massachusetts where they created the eponymous chocolate chip cookie in 1938. As cookies became more popular and people started baking them at home, people would taste the batter to ensure the sweetness of the product. The practice of eating