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A bowl of soba noodle soup with tofu, mushrooms, and bok choy, accompanied by chopsticks and a yellow napkin on a light table.
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Vegan Soba Noodle Soup with Shiitake Mushrooms

This easy vegan soba noodle soup recipe brings authentic Japanese flavor to your table, perfect for a cozy meal on a busy weeknight.
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: Main Course, Soup
Cuisine: Japanese
Keyword: japanese soba noodle soup recipe, soba noodle soup, vegan soba noodle soup
Servings: 5
Calories: 189kcal

Ingredients

  • 5 oz soba noodles
  • 1 tbsp avocado oil
  • ½ cup shiitake mushrooms
  • 1/2 fresh ginger
  • 1 1/2 tbsp yellow or white miso paste
  • 5 cups vegetable broth
  • ½ cup firm tofu cut into long strips
  • 3 pcs baby bok choy
  • 1 tbsp soy sauce
  • 2 tsp sesame oil
  • 2 medium green onions

Instructions

  • 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!

Notes

Fresh Ingredients: Use fresh, high-quality ingredients to enhance the overall taste and texture of the soup.
Use High-Quality Soba Noodles: Look for soba noodles made from 100% buckwheat flour for the best flavor and texture. Avoid buckwheat noodles that contain a high percentage of wheat flour.
Don't Overcook The Noodles: Soba noodles cook quickly, so be sure to follow the instructions on the package for the cooking time. Overcooked noodles can become mushy and lose their pleasant chewiness. Cook them slightly underdone, as they will continue to cook in the soup.
Don’t Overcook Vegetables: Apart from the soba noodles, keep an eye on the bok choy as well to ensure it retains its vibrant color and crisp texture.
Adjust Seasoning: Taste your soup as you go and adjust the seasoning according to your preference. You can add more soy sauce, salt, or miso paste for a stronger umami flavor. But it’s always best to start with the recommended amounts and you can add more if desired.

Nutrition

Calories: 189kcal | Carbohydrates: 28g | Protein: 8g | Fat: 6g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 3g | Sodium: 1560mg | Potassium: 175mg | Fiber: 1g | Sugar: 3g | Vitamin A: 580IU | Vitamin C: 1mg | Calcium: 49mg | Iron: 1mg