Ingredients:
8 inch dried kombu seaweed
one baggy of dried fish (bonito) flakes
4-5 shitake mushrooms
1/3 cup of Soy sauce
1/3 cup of Rice wine
1 Tbspn of sugar
1 Quart or a liter of water
a bunch of spinach, kale, collard greens or other green you like
1 lb of soba noodles
Dashi
Start by preparing a Dashi. Dashi is a simple broth made of kombu (dried seaweed) and bonito flakes.
Place the water in big pot over low fire. Cook the kombu in the water until tender. Be careful not to let the water boil. When the seaweed is tender, remove and discard. Turn off the stove and add the fish flakes and let sit for a few minutes. Drain the broth and discard the flakes.
Noodles
Cook the noodles according to the package instructions. While the soba noodles are cooking add the soy sauce, the rice wine and the sugar to the Dashi. When the noodles are done rinse them and add them to the broth. Reheat and add your greens and the previously hydrated Shitake mushrooms (chopped and with any hard parts removed).
To hydrate the mushrooms place them in warm water as if they were teabags. You can add the water used to rehydrate the mushrooms to the noodle soup.