Ginger Scallion Soba is a deceptively simple recipe. Specifically, this Ginger Scallion sauce is the Vietnamese rendition. And its taste is foolproof because of its cornucopia of umami flavors; fish sauce, bacon, lemongrass, ginger, and scallion. But that's just half the dish. As equally important, my wife [Jean] who is [Korean and Japanese, born in Hawaii] introduced me to Nihon Soba [cold buckwheat noodles]. Intuitively, I paired the two components together. As a result, this cold noodle dish is one of our favorite summer season recipes.