>I have some Laura Brody sourdough enhancer. great for a quick loaf when I
>don't have time for the real thing. Does any have an idea how this stuff is
>made. I was thinking it is just dried and crushed starter.

It is more than that...
A sourdough enhancer generally contains this basic ingredients
dehydrated sourdough in powder form,,filler in forrm of flour, wheat
gluten and diastatic malt..Usually its inactive (as a source of
leavening and therefore for flavoring use only.
It is recommended to be used with bakers yeast
Roy