What I do know is that these are delicious, and I am still figuring out how to make them. This is the first time I've posted my efforts, as nothing before has seemed either good enough or reproducible enough to post about. But this is the 2nd time I've made this and they've worked out, so I think I'm getting the hang of it.
See, I don't have a kitchen scale, and so many of these French macaron recipes only give you weight measurements (well, cuz they're more accurate, can't blame them for that), but I don't have a scale. So, after many a failed attempt, I finally found a measuring cup based recipe that I had decent results with, minding that I didn't use the pre-ground almond flour they sell at Trader Joe's, and instead, grind the almonds up myself with my food processor, then sift out the largest chunks. While adding another step, and another round of dishes, this seems to have done the trick.
Now, I have to say, they are still not perfect. I expect a certain amount of airy nothingness in the middle of my macaron, and a perfect foot (the sort of crumbly looking side of the cookie), which still isn't consistent across all cookies in even the same batch. I think these ones came out just a little too gooey/sticky in the middle, even though I think the tops domed quite perfectly. So many variables!
If you like macarons, and have a kitchen scale, I highly recommend checking out my friend Risa's blog, Baked Perfection, as she is always coming up with some special new macaron flavor combo. They all look very delicious!