While you can use foil to line a baking sheet for, say, crisping up bacon in the oven, it’s not the best liner for your sheet pan if you’re making cookies. Lining your cookie sheet with aluminum foil can cause the bottom of your cookies to cook faster, ultimately resulting in uneven bake.
In this manner, can I line a cake tin with foil?
Aluminum Foil
It can be great for lining the dishes and pans you are cooking with so that cleanup is easier. However, unlike parchment paper and wax paper, foil doesn’t have anything that makes it nonstick. This means that you could end up with bits of foil stuck to your food when all is said and done.
Keeping this in consideration, what is a foil lined baking sheet?
Lining a Baking Pan with Foil
This method of keeping things from sticking to the pan is used most often for brownies, bar cookies, and fudge. The additional advantage of this method is that it allows you to easily lift the bars out of the pan before cutting them.