The culprit of this problem is often an oven that's temperature runs too high. If your oven has been set to the ‘correct’ temperature, it is important to use an oven thermometer to get an exact reading.u003cbr/u003eu003cbr/u003eMonitor your cooking time and temperature closely, making sure you turn it down slightly if necessary to allow for even baking throughout and lessen any chances for a cracked top.