Sumiso sauce: I added Saikyo miso 西京味噌 (1 tbs), mirin (1 tbs) and rice vinegar (1/2 tbs) in a suribachi or Japanese mortar and mixed them until it became a smooth sauce.
I arranged the broiled bamboo shoot on a small plate, poured the sauce over and garnished with finely chopped chive as seen above.
This is a nice way to enjoy bamboo shoot. You can really experience the subtle flavor and nice crunchy texture of the shoot. The sauce was very complimentary to the bamboo shoot. It went perfectly with the cold sake we were having.