I used four heads' worth of black garlic cloves in the sauce. My intention is to store the sauce in the refrigerator for a week, and then blend up the sauce base, while adding some onion, garlic, anchovies, dark soy sauce, fish sauce and (possibly) ginger. I plan to then store the sauce in a sealed container in the refrigerator for a further few weeks, at which time I will test the sauce to see how it tastes.
The sauce is meant as a cooking ingredient or base for another sauce. I fully expect that it will impart significant savoriness, or umami, to the dishes in which it is added.
I also put some rocks in jars tonight. In my current black garlic oven, I have four pint jars full of water between the light bulb and the garlic, to provide the system with some thermal mass. In thinking that I'd rather the heat be a little more even, I reckoned that stone absorbs IR radiation, so the addition of rocks with water should deliver more even heat throughout the oven while protecting the garlic from direct light. The jars are pictured below.
I'll next post a detailed guide to the structure and setup of the black garlic oven, when I load it with garlic this Saturday, following the harvest of the black garlic currently finishing its drying process.