When the Impossible Burger–a plant-based burger designed to sizzle, smell, taste, and bleed like beef–launched in July 2016, it was available first in Manhattan at Momofuku Nishi, a restaurant that also sells $39 strip steak and $62 lobster fra diavolo. Momofuku’s upscale version of the burger is $18. Now, after quickly scaling up, the burger is taking the next step into the mainstream: The fast-food chain White Castle will begin selling Impossible Sliders Read more