Does it matter if you put vanilla in cookie dough?

It depends on what you mean by "matter"!

* Flavor: Vanilla is the most common flavoring used in cookie dough. It adds a warm, sweet, and slightly floral note that balances out the sweetness of the sugar and the richness of the butter. It enhances the overall flavor of the cookies, making them more complex and enjoyable.

* Essential: While vanilla is not strictly essential for making cookies, it is highly recommended. Omitting it might result in a less complex and less appealing flavor.

* Alternatives: If you don't have vanilla extract, you can use other flavorings like almond extract, lemon zest, or even a splash of coffee. However, these alternatives will result in a different flavor profile.

So, does it matter? If you want the traditional, delicious flavor of cookies, then yes, vanilla matters. But if you're looking for a different flavor profile, feel free to experiment with other additions!