A steaming bowl of this soba noodle soup will cozy you up with its rich ... Set aside. ½ cup shiitake mushrooms, 2 medium green onions, 1/2 fresh ginger Wash the bok choy and trim the ends.

Set mushrooms and stock aside separately. In soup pot or large Dutch oven over medium heat, sauté ginger and leek in oil until soft (about 3 minutes). Add shiitakes and sauté 45 minutes or until ...