Watch Euronews live stream
They are reputed to be among the best in the world, so "Taste" had to go to Japan's north-east to find out, and chef Thierry Voisin had to cook some in his inimitable way.
In the latest edition of euronews' culinary magazine "Taste" from Japan, Thierry Voisin raves about the excellence of Japanese scallops, and shares a recipe.
It can be harvested all year round, but precise growing conditions make wasabi rare and extremely precious.
The French master chef has spent a decade working in Japan, and knows the secrets of this important element in Japanese cuisine.