Using the right pan is always important in baking. Sometimes, you have to do more than check the label on the pan. If you have two 8-inch square (or 9-inch square or 13x9-inch) baking pans in your kitchen cupboards, pull them out and measure them. You may be surprised at what you find. Just because pans are labeled the same size doesn't mean they actually are the same size. We found several pans from our staff and test kitchens that were labeled 8-inch square but didn't measure equally when we checked them.

Why the concern? For most baked goods, cooking time is important. If your pan measures larger than the specified size in the recipe, your baked goods may cook more quickly than what's stated in the recipe. If it's smaller, they may need more time in the oven.

To ensure perfectly cooked items, follow the doneness tests given in each recipe and use toothpicks when directed. Begin checking the baked goods 2 to 3 minutes before you think they should be done so that you can pull them out at just the right moment.