I had an AHA moment when chopping the garlic for the bread pudding. I had decided just to use extra onions and garlic and caramelize the onions a bit. All of a sudden, black garlic popped in my head, umami, earthy, etc. So, since we happened to have some in the fridge, I pulled out a couple of heads, chopped them up and added to the onions about 5 minutes before adding the regular garlic. The black garlic added a bit too much sweetness, but worked pretty darn well otherwise in regard to umami and earthy. Next time, I'll either not use as much, chop much finer or cook for a bit and mash, or add some bitter or acid notes.