I you have a big casserole dish, put the cookies in it on a sheet of baking paper
If you have a 13 x 9 inch cake pan, turn it upside down and use the bottom for support for the aluminum foilI would imagine that would work.
in general is a bit vague, but based on total quantity used, I'd say steel, as it is used for automobiles, appliances, has uses in construction and is used for food packagingOn the other hand for aircraft, various alloys of aluminum are generally a better type of sheet metal
just use a baking trayA cookie sheet has no sides so the cookies can slide off, that is the only difference
If you have a metal lasagna pan, broiling pan (bottom portion) or a similar long cooking dish, you can use thatJust follow the baking instructions on the cookie package and use this substitute pan Using plain aluminum foil on the oven rack won't give very good (or safe) resultsIt is too thin - even the Heavy Duty foilThe cookies will bake unevenly and be very difficult to remove from the oven - as well as being rippled from oven rackGood luck!
