OK, I gues I have to reveal the secret.... preheating involves both top and bottom elements, so the heat is hotter and the oven gets up to the correct temp, then it lowers the heat to maintain that temp.
So if you stick it in during preheat, it is more likely to burn on the outside and be undercooked inside. But I do it anyway, especially baking biscuits, in order to get a nice allover crust going.
Last edited by DixieGal; 06-26-2009 at 01:35 PM.
Reason: Give me KARMA for sharing some of my vast knowledge of cooking trivia!
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