The cooler weather hits and like moths to a flame, we gravitate to the oven. The desire to bake — bake anything! muffins! cookies! pies! — is overwhelming. But there is nothing sadder than opening the oven and finding that an afternoon spent mixing, dividing, and anxiously waiting has resulted in a batch of burnt, lackluster baked goods. We've said it before and we'll most likely say it again: The one tool you need above all others to bake crave-worthy and friend-winning treats this fall is an oven thermometer.