Fluke Buttermilk, Soy & Poppy Seeds

You’ve had the salty pig chip. And the buttery English muffin. Now it’s time for raw fish. We cycled through a few ideas before this one, but when it came together, it was a clear winner: not too weird (in fact, the buttermilk and hot sauce have a Buffalo wing kind of thing going on—the night we made it for the first time, a couple weeks before Ko was set to open, we ate all the extra buttermilk dressing drizzled on to baked potatoes) and very simple looking. We had talked about the dish fo