Karashi-ae

In a small bowl, combine the Japanese mustard powder and Water. Mix well until a smooth paste forms. Cover the bowl and let the Japanese mustard paste rest for 10 minutes to allow the flavor to develop.

In another bowl, whisk together the Usukuchi soy sauce, Mirin, Dashi stock, Granulated sugar, and the prepared Japanese mustard paste until thoroughly combined. Set aside the dressing.

Bring a pot of Water to a rolling boil. Add the Salt to the boiling Water.