OK, took me a while, but I made this dish, with some variations. It was much more mild than I expected, and overall gave me quite of a Japanese vibe - maybe because I associate many of those flavors (buckwheat noodles, sesame paste with soy, mustard~=horseradish/wasabi) with said cuisine. It was quite tasty, I'd make it again at some point, even though I still prefer my old go-to Japanese style cold soba with miso and sesame.           Recipe: