I have basil all over and I just got my first bunch of dried basil for spice (yes I was being lazy I should have more basil than I know what to do with). I was out collecting more to dry and see that a few of my plants are into heavy flower production. Though it is pretty can they still be used for pesto or spices.
I have always grown spices but I rarely harvested them so I'm not so sure on this part of the gardening experience.
If you cut off the flowering stalks will they regain there momentum (basil that is) or are they done for at this point as far as an edible herb is concerned?
p.s. If only i didn't let my cinnamon basil die I would be much more happy. That stuff is like heaven in a pot. I can't find anymore of it around here at the moment. If you haven't grown it you must. C'mon "Cinnamon", "Basil" where can you go wrong there.