I grated daikon (daikon-oroshi 大根おろし) and squeezed out the excess moisture. That left me with about 4-5 tbs of grated daikon but again, the amount of each ingredient is totally arbitrary. I mixed about 1/2 tsp of 7 flavor Japanese red pepper 七味唐辛子 powder into the grated diakon. You could use one flavor pepper 一味唐辛子 or regular red pepper flakes. You could also add more pepper to make it spicier. Then I added ponzu shouyu (from the bottle, about 2 tbs). If you squeeze out the excess water from the grated daikon properly, it should absorb all the ponzu liquid and not get too runny. I made a mound of the flavored diakon on the center of the plate (or shallow bowl as seen above). I surrounded it with thinly sliced roasted duck breast and garnished with julienne of cucumber, Campari tomato and finely chopped chives.
This is a rather classic combination. The daikon I used was a very nice one and was not too pungent or hot on its own. The addition of ponzu and red pepper powder made it nicely spicy with citrus flavor. The diakon served as a refreshing counter-point to the richness of the duck breast--it served as an excellent dressing for the duck. Grated daikon is not one of my wife's favorites but she finished everything including the grated daikon. We had this with our newly discovered Gekkeikan "Black and Gold".