I should probably think twice before I toss around words like “ultimate”—there are a lot of raw mushroom burgers out there, and this is but one of them. With that said, it’s probably my favorite raw burger so far, and I’ve got a bunch that I love: most recently, I posted a raw spinach burger that was pretty delicious. What I like about this burger is its “meatier” texture (most of my burgers are a little crumbly) and the earthy taste that comes...