A month ago or so,
I asked folks here about sous vide miso. I never really found much in the way of a specific answer, so I just gave it a shot. One of those ideas that's been percolating in my head for a couple of years was to make miso from almonds. I'd never really done much with the idea though. Until now.
I wasn't sure how to start, but figured I'd need to prep the almonds. I decided to take a dual approach. I'd roast half of them in the oven. The other half, I cooked in the pressure cooker with almond milk.to cover. The nuts then went into the food processor, with more almond milk to get the consistency I was looking for. Still a bit chunky: not smooth almond butter, but a grainy texture with a few chunks of whole almonds still in there. This mixture was a little flat in the flavor department, but I pressed onward. I added salt. 110 g for 700 g of almond mix. Now it just tasted salty. Then added 220 g of koji rice. Mixed this in thouroughly and packed into two salted mason jars. Into the circulator, at 43 C. I wasn't really sure how long to let this go.

I reached out to Josh Fratoni (via Instagram) who was running the lab for Sean Brock on the Mind of a Chef episode that I had cribbed the sous vide details from. He suggested checking every 10 days, and mentioned that he'd never taken nut misos past about 30 days for fear of oxidation of the oils. He also suggested to let some ride and see what happens.
So, nothing to do but wait. At 10 days, not much appeared to be happening. But just a few days later, the miso started to noticeably darken in color. It started to develop a nutty roasted aroma that hadn't been there before. And at 16 days (yes, I've been running my circulator continuously for 16 days now.), it tasted pretty dang good. So I pulled a jar and got to
work. The other jar? Still going.