do you enjoy chocolate chip cookies?, they were invented in 1938 just by chopping up chocolate bars into cookies
Who invented them?
Ruth Graves Wakefield invented them, she was a Chef, business owner and author. 
OK thats good ,what are they made of?
Mostly just brown and white sugar, with butter, vanilla and then the chocolate chips added in 
So who are the largest exporters?
Chocolate chip cookie
A chocolate chip cookie is a drop cookie that originated in the United States and features chocolate chips or chocolate morsels as its distinguishing ingredient. Circa 1938, Ruth Graves Wakefield added chopped up bits from a Nestlé semi-sweet chocolate bar into a cookie.
The traditional recipe starts with a dough composed of butter and both brown and white sugar, semi-sweet chocolate chips and vanilla. Variations on the recipe may add other types of chocolate, as well as additional ingredients such as nuts or oatmeal.
served and soon gained local fame for her desserts. In 1936, while adapting her butter drop dough cookie recipe, she invented the first chocolate chip cookie using a bar of semi-sweet chocolate made by Nestlé. 
The new dessert soon became very popular. Wakefield contacted Nestlé and they struck a deal: the company would print her recipe on the cover of all their semi-sweet chocolate bars, and she would get a lifetime supply of chocolate. Nestlé began marketing chocolate chips to be used especially for cookies. Wakefield