It sounds crazy, but every oven is SO different, and it's hard to truly get to know your own oven. Chances are your oven is lying to you when it comes to temperature. The only thing you can do to make sure your baked goods, or anything for that matter, are cooking at the right temperature is to buy one of these very handy oven thermometers. This little guy dangles down from any oven rack and will stay out of your way, all while monitoring the true temperature of your oven. Life saver.