Start by cleaning and cutting the mushrooms into thin slices. Finely chop the green onions into rounds. Then, peel and mince the ginger. Set aside.
½ cup shiitake mushrooms, 2 medium green onions, 1/2 fresh ginger
Wash the bok choy and trim the ends. Depending on the size of your bok choy, slice them in halves or quarters. Set aside.
3 pcs baby bok choy
In a large pot heat the avocado oil over medium heat. Add the sliced mushrooms and cook for 5-7 minutes, stirring occasionally, until they start to brown.
1 tbsp avocado oil, ½ cup shiitake mushrooms
Reduce the heat to medium-low and add the miso paste and minced ginger.
1 1/2 tbsp yellow or white miso paste
Add a small amount of the vegetable broth to the pot.
5 cups vegetable broth
Stir until the miso is fully dissolved.
Pour in the remaining vegetable broth and let it simmer for 5 minutes.
5 cups vegetable broth
While the soup is simmering, cook the soba noodles in a separate pot of water. Let the water boil first before putting the noodles. Cook until slightly underdone. Drain and rinse with lukewarm water to wash off extra starch. Set aside.
5 oz soba noodles
Add the tofu and baby bok choy to the soup.
½ cup firm tofu, 3 pcs baby bok choy
Cook for 3-5 minutes until the bok choy starts to wilt slightly.
Add the soy sauce, sesame oil, and chopped green onions. Cook for another 1-2 minutes.
1 tbsp soy sauce, 2 tsp sesame oil, 2 medium green onions
Add the cooked soba noodles to the soup and taste, adjusting soy and sesame oil as needed.
5 oz soba noodles, 1 tbsp soy sauce, 2 tsp sesame oil
Transfer to a medium bowl. You can garnish the soup with sesame seeds or chopped scallions to add more visual appeal. Serve it immediately for the best flavor. Enjoy!