A chocolate chip cookie is a drop cookie that originated in the United States and features chocolate chips as its distinguishing ingredient. The traditional recipe combines a dough composed of butter and both brown and white sugar with semi-sweet chocolate chips. Variations include recipes with other types of chocolate or additional ingredients, such as nuts or oatmeal.HistoryThe chocolate chip cookie was accidentally developed by Ruth Graves Wakefield in 1930. She owned the Toll House Inn, in Whitman, Massachusetts, a very popular restaurant that featured home cooking in the 1930s. Her cookbook, Toll House Tried and True Recipes, was published in 1936 by M. Barrows & Company, New York. It included the recipe "Toll House Chocolate Crunch Cookie", which rapidly became a favorite to be baked in American homes.Nestlé marketingWakefield is said to have been making chocolate cookies and on running out of regular baker's chocolate, substituted broken pieces of semi-sweet chocolate from Nestlé thinking that they would melt and mix into the batter. They did not and the chocolate chip cookie was born. Wakefield sold the recipe to Nestlé in exchange for a lifetime supply of chocolate chips. Every bag of Nestlé chocolate chips sold in North America has a variation (butter vs. margarine is now a stated option) of her original recipe printed on the back.