Brown sugar contains molasses, which helps to keep cookies chewy.

All-purpose flour is a good choice for cookies because it provides a balance of structure and tenderness.

Butter is a common ingredient in cookies because it adds moisture, richness, and flavor.

Chilling cookie dough helps to prevent the cookies from spreading too much because the cold butter will solidify and hold its shape better in the oven.

Sugar helps to create a crispy texture in cookies because it caramelizes during baking.

Chocolate chip cookies are the most popular flavor of cookie in the United States, followed by oatmeal raisin, peanut butter, and snickerdoodle.

Brown sugar contains molasses, which helps to keep cookies chewy.

Salt is added to cookie dough to enhance the flavor of the cookies and to balance the sweetness of the sugar.

Nuts are often added to cookies to add a nutty flavor and texture.

Vanilla extract is added to cookie dough to enhance the flavor of the cookies and to balance the sweetness of the sugar.

Dried fruit is often added to cookies to add a fruity flavor and texture.

Baking soda is added to cookie dough to make the cookies rise by releasing carbon dioxide gas when heated.

Cinnamon is often added to cookies to add a spicy flavor.

Baking powder is added to cookie dough to make the cookies rise by releasing carbon dioxide gas when heated.

Peppermint extract is often added to cookies to add a minty flavor.