Eggs act as a binder in cookies, helping to hold the ingredients together and create a cohesive structure.

Baking soda is the most common leavening agent used in cookies, causing them to rise and become fluffy.

Brown sugar is a popular choice for cookies due to its molasses content, which adds moisture, flavor, and a slightly chewy texture.

Chilling cookie dough helps to firm up the butter, preventing the cookies from spreading excessively during baking.

Most cookie recipes call for a baking temperature of 350°F (177°C), which allows the cookies to bake evenly without burning.

Flour is the main ingredient that provides structure and stability to cookie dough, helping to hold the cookies together and prevent them from crumbling.

Chocolate chip cookies are a popular type of cookie known for their flat, crispy shape and the inclusion of chocolate chips.

Butter is a key ingredient in cookie dough, contributing richness, flavor, and a slightly chewy texture to the finished cookies.

Oatmeal cookies are a popular type of cookie known for their chewy texture and the inclusion of oats, raisins, or nuts.

Salt is added to cookie dough to balance the sweetness of the other ingredients and enhance the overall flavor profile.

Cake cookies are a type of cookie known for their soft, cake-like texture and the inclusion of a frosting or filling.

Eggs are added to cookie dough primarily to add richness and flavor, as well as to help bind the ingredients together.

Fortune cookies are a type of cookie known for their crispy texture and the inclusion of a fortune or message inside.

Vanilla extract is added to cookie dough to enhance the flavor of the other ingredients and create a more complex flavor profile.

Thumbprint cookies are a type of cookie known for their round shape and the indentation in the center, which is often filled with jam or fruit filling.