What are some common uses for aluminum foil in cooking?

Aluminum foil is commonly used in cooking for several purposes. It can be used to cover food while baking or roasting to prevent it from drying out, to create a steaming pouch for vegetables or fish, and to wrap food for easy transport or storage. Foil is also used to line baking sheets to prevent food from sticking and to make cleanup easier. Additionally, it can be used to create packets for cooking en papillote, where food is sealed in a foil pouch with aromatics and steamed or baked. Lastly, aluminum foil is used for making molds for dishes that require a specific shape, such as chocolate molds or for shaping meringues.