The combination of corn, soy, and butter is as delicious as it is classic. As Hiroko Shimbo writes in her book *Hiroko’s American Kitchen*, corn and butter are a common pair in Hokkaido, the northernmost island of Japan, where both are produced. Here, the three come together along with pan-fried tofu, scallions, mirin, and sesame oil to make an ultra-flavorful, just-rich-enough vegetarian main. Serve it over rice, a chewy grain like farro or wheat berries, or arugula dressed with rice vinegar and more sesame oil. A crispy fried egg would also be welcome.