Cookie dough is a mixture of ingredients used to make cookies, typically including flour, sugar, butter, eggs, and flavorings like vanilla. It can be enjoyed raw or baked, with many people preferring the taste of the uncooked version. There are various types of cookie dough, such as chocolate chip, oatmeal, and peanut butter. Some brands even sell pre-made cookie dough in stores, allowing for quick and easy baking at home. However, it's important to note that consuming raw cookie dough carries a risk of foodborne illness due to the presence of raw eggs and flour.