Soy Sauce-Mustard Dressing

This traditional oil-free dressing is a mixture of shoyu (soy sauce), dashi (fish stock), salt, mirin (sweet cooking wine), and nerigarashi (mustard paste). Japanese mustard has a pleasant bitter-spicy flavor. Karashi-joyu goes well with briefly boiled vegetables, such as spinach, watercress, mustard leaf, cabbage, broccoli, asparagus, and bean sprouts.