From a beautiful Laetiporus cincinnatus found earlier in July. It was in great shape, but the lower layers had grown around a fair amount of stiltgrass, and I didn't want to hog it all.
I just trusted my taste buds. Pity though, they're large and I got a lot of sauce quite similar to your recipe, which I then had to throw out.
I'm not much of a forager but next time I'll remember. They're easy to recognize.