White-Miso Tofu Soup With Watercress
Makes 8 cups.
Note: Kombu is a dried sea vegetable that is used to flavor stock, and is available in the Japanese food section of larger supermarkets, co-ops and Asian markets. If you don't want to use it, add more dried mushrooms. In winter, use sweet potatoes instead of radish, and chopped kale instead of watercress, for a seasonal approach. From Robin Asbell.
• 1 tsp. canola oil
• 1 lb. firm tofu
• 2 tsp. tamari soy sauce
• 6 c. water or vegetable stock
• 1 piece kombu (see Note)
• 2 large dried mushrooms