Xanadu wrote:
> How much pre-heating should one do?
>
> I like to make oat cakes, should the oven be at the correct temperature, or
> is just a 10 min wait enough.
>
> Also
>
> What temperature is best to cook at for a quite thick oat cake, about 1.5",
> some recipes say 280 degrees, and some 320 degrees.
>
> Thanks

If the recipe specifies a preheated oven it means heated to baking
temperature.

You can start baking earlier but will need to adfjust the baking time
and you may get some changes to texture.