This is where a baking stone, stainless cookie sheet, or reusable silicone baking mat can be super useful. Cookie dough can go directly on a baking stone or a stainless cookie baking sheet. Or you can use a silicone baking mat as a liner for perfectly baked cookies and treats. Wax paper or unbleached parchment paper are also options, but your best bet for the planet is always reusable.