A chocolate chip cookie is a popular baked treat made from a dough that typically includes flour, sugar, butter, eggs, and vanilla. The defining feature of this cookie is the addition of chocolate chips, which are small pieces of chocolate that melt slightly during baking, creating a deliciously gooey texture. These cookies are often enjoyed warm and can be found in various forms, such as soft, chewy, or crispy. They are commonly served as a dessert or snack and are a favorite among both children and adults, making them a staple in many households and bakeries.