- ½ teaspoons usukuchi shoyu (light-colored soy sauce) or regular shoyu (soy sauce)
- 1 tablespoon mirin (sweet cooking wine)
- ½ cup dashi (fish stock)
- ¼ teaspoon salt
- 1 teaspoon hot mustard paste
- In a medium bowl, combine all the ingredients except the mustard paste. Add the mustard paste little by little, stirring. Taste the dressing when you’ve added half the mustard paste, and either stop or continue adding it, to suit your taste. Toss the dressing with about 9 ounces of briefly boiled and cooled vegetables, and serve.