Chocolate Chips are great ingredients to add to tons of bakery items, especially chocolate chip cookies. In fact, the chocolate bits were probably invented for the popular cookie in the 1930s. Originally in order to use chocolate chips bakers had to chop up the chocolate themselves. They were first sold in chip form in 1941. Chocolate Chip Day celebrates the popular ingredient. Celebrate it by baking with chips today or simply by eating some chocolate chip cookies.