How to bake thick brownies and bars

It’s really quite simple, actually. If you want thicker, taller bars or brownies, bake them in a smaller pan. Many recipes instruct you to use a 9×13-inch pan, but you can use an 8-inch or 9-inch square pan just fine. You’ll need to adjust the baking time as they will take longer to bake, but you don’t need to make any other changes to the recipe.