i im using Hefty EZ Foil Muffin Pan
but do i have to use the liners

Don’t have a muffin pan (long explanation) but we have a normal cookie pan. Wanted to make muffins so I was wondering: Can I put the muffin batter in some homeade tin muffin cups and place them on the pan? Please, if not, any other solutions?
made tin foil muffin cups. Made them double the thickness and they seem to hold up pretty well. Thanks for all of your answers!