FIRST ITERATION
When reading the recipe, I realized it asked for three full cups of sweetener, one cup liquid, one stick butter, four eggs, and two cups flax meal. I was horrified by this amount of sweetener, so I only used one cup of erythritol with some baking splenda mixed in. Dan loved them, but I couldn't get past how sweet they still were, and the texture of the flax meal reminded me a lot of wheat bran or corn hulls.
SECOND ITERATION
Like most weekends, I woke up wanting to bake something at random, and Dan requested flax brownies again. We were out or low in a few ingredients, so I substituted. I only used 1/4 C erythritol total, used extra cocoa powder instead of baker's chocolate, and subbed the last half cup of flax meal with a mixture of hemp and coconut flour. I frekin loved these! They had the same texture as the carbomb cupcakes I'd made the week before for Isilza, though a bit dry. I want to make them like this again but add more cream next time. There was one tray of mini cupcakes (15 minutes) and one of big cupcakes (20 minutes). Dan found them not sweet enough.
THIRD ITERATION
This morning followed the same procedure. This time I had all the ingredients, but the stove was in the dishwasher, so I had to add the baker's chocolate shaved instead of melted. I upped the sweetener to 1/4 C erythritol and 1/4 C baking splenda, which was a good level of sweet. Again in one tray of minis and one tray of regular cupcakes, but something made them really fluff up! Dan loved them and deemed them the best batch. I didn't like them nearly as much as last month's because they had the hully texture again, but it got better after they cooled. A lot more fluffy like cake than moist and chewy like a brownie. There's a bit of tinny aftertaste from the sweetener.
MY IDEAL NEXT ITERATION
I want to keep the sweetener from batch 3, but the solids from batch 2. Maybe do 1.5 parts cocoa powder and 0.5 parts baker's chocolate, and twice as much cream.