I would think turning the oatmeal into a powder would be better idea than actually making the oatmeal only because you are the adding a wet ingredient in place of a dry one. I would think the only thing that would be different if you make the oats into an oatey powder would be a smoother texture. I am no baker but that makes me sense to me.
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Re: Use cooked oatmeal in place of oats for baked recipes
