Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: Top prepare the baking dish,
roll out a 2' long piece of aluminum foil, and press it into the bottom and sides of the dish and crumple the extra over the sides and top.
Grease the baking dish with butter.