Baking Substitutions Cookies Non-Stick – Can Cookies Be Baked Without Baking Paper?

You can reuse parchment paper several times for your cookies (it also works for other dry dishes), depending on cooking time and temperature, with no problem. Change the paper when it gets dirty, dark and/or brittle as it may crumble beyond this point. I always do so with no difference in the results, saving both on money and waste.

Powdered sugar is not an acceptable substitute to standard white (granulated) sugar.

During the creaming step, the hard sandy texture of granulated sugar creates small starter bubbles in the cookie dough. These bubbles will expand during baking, and are integral to the finished cookie's texture.

Ideally, use the correct kind of sugar called for by the recipe. Or, search for a recipe which specifically calls for powdered / confectioner's sugar instead of granulated sugar.