Can I use aluminum foil to line a baking sheet for baking cookies or cakes?

Yes, you can use aluminum foil to line a baking sheet for baking cookies or cakes. Lining the baking sheet with aluminum foil can make cleanup easier and prevent food from sticking. It also helps in even heat distribution, which can be beneficial for baking. However, make sure the foil doesn't touch the heating elements of the oven, as this can cause a fire. Additionally, some bakers prefer not to use foil for baking as it can affect the texture and browning of baked goods, so it's a matter of personal preference and the specific recipe's requirements.