Saute onion, fennel, garlic, ginger, red chili flakes in blended oil. Add konbu sheets and deglaze with mirin. Reduce for 5 minutes. Add rice vinegar, stock, soy, bonito flakes and simmer. Strain ingredients until all liquid is drained. In a large mixing bowl, place miso and begin to drizzle liquid (as if making a vinaigrette). When reached consistency, add yuzu to desired flavor (this process can be achieved in a blender too).
Professional Recipe: This recipe was provided by a chef, restaurant or culinary professional and makes a large quantity. The Food Network Kitchens chefs have not tested this recipe in the proportions indicated and therefore cannot make any representation as to the results.
Recipe courtesy Chef Michael Schlow of Great Bay Seafood in Boston