When you set your oven to 350ºF, chances are — even with a brand-spanking-new oven — that the internal temperature won't match up precisely with your selection. Some ovens are as much as 100ºF off, but even as small a disparity as 10ºF can be detrimental to your end product when baking. Instead, keep an oven thermometer (about $10) in the oven at all times, and check it and adjust accordingly by either cranking the heat up or down until it's at the temperature that your recipe intended.
Invest in an Oven Thermometer
From Our Partners