Making these:

https://sallysbakingaddiction.com/dark-chocolate-chunk-oatmeal-cookies/

omitting cinnamon and using only 4 out of 5 small bars in the package of Moser Roth 85% dark chocolate (total package saying 4.4oz) chopped up as chocolate. 

I debating throwing an extra egg yolk in since I've read that that's good for texture, and because I used large and not extra large or other eggs (I grew up always using the bigger ones and it feels a little weird not to) but chose not to this time. I also creamed the sugars and butter for a longish time--really let them go on speed 4 in the kitchenaid for 4-6 minutes.

yet another brownie recipe: Tartine bakery style brownies

I saw this recipe and I had to try it. I used Trader Joe's 72% dark pound chocolate pound plus bar.  (Some reading suggested that there is not a formal difference between "dark" and "bittersweet."

I had to beat the egg/sugar mixture for quite a while, and it never really reached the color/texture combo described. Perhaps the eggs were too old, but colorwise I'm no sure how brown sugar would ever let this be pale yellow.

Anyway. The results were good, but kind of too fudgelike for me. Very dense, but almost too dense, if that makes sense. I would prefer a little moist and cakey, perhaps, rather than simply solid.  But perhaps they are so solid because the eggs didn't go as planned. Hard to know.  I think, overall, I prefer cocoa-based brownies. They are less work, too.