Aluminum foil is the MacGyver of the kitchen—it can do almost anything. For cookies, grease the foil generously with butter or cooking spray. Otherwise, your cookies will stick like they’re auditioning for a glue commercial.
Pro tip: Shiny side up? It doesn’t matter much, but I always go shiny side up because it looks more optimistic. Foil can also cause cookies to brown faster on the bottom, so keep an eye on them. You’re baking, not summoning charcoal.
