Here are some guidelines for cutting brownies and bars. The size of the bar or square is approximate and will vary with your pans.
8-INCH SQUARE BAKING PAN
Cool bars in the pan prior to cutting. You will find that they are less crumbly and easier to cut when cooled.
Under-baking causes doughy bars. If the pan is smaller than recommended, dough will be thick and will not bake completely in the time indicated in the recipe.
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