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Vegan Udon Noodle Soup

This vegan udon noodle soup features thick, chewy udon noodles immersed in a deeply savory, umami-rich broth. The dish is built with plant-based ingredients like mushroom soy, miso, seaweed, and crispy tofu, resulting in a comforting, glossy bowl with a satisfying texture and layered flavor profile.
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings: 4
Course: Main Course
Cuisine: Japanese
Calories: 450

Ingredients
  

  • 400 g udon noodles thick, chewy, preferably fresh or frozen
  • 2 tablespoons mushroom soy sauce adds earthy depth
  • 2 tablespoons miso paste preferably white or yellow miso
  • 1 teaspoon fresh ginger grated or thinly sliced
  • 1 tablespoon olive oil for frying tofu and aromatics
  • 400 g firm tofu cubed, fried until golden
  • 1 g dried wakame seaweed rehydrated in broth
  • 2 green onions green onions chopped, for garnish
  • 4 cups vegetable broth or mushroom broth for extra umami

Equipment

  • Large pot
  • Frying pan
  • Mixing bowl
  • Tongs

Method
 

  1. Bring a large pot of water to a rolling boil, then cook the udon noodles for about 8 minutes until just tender. Drain and rinse with cold water to stop the cooking process and set aside.
  2. While the noodles cook, heat a frying pan over medium-high heat and add a tablespoon of olive oil. Carefully place the tofu cubes in the pan and fry until golden and crispy on all sides, about 5-7 minutes. Remove and set aside.
  3. In the same pan, add the grated ginger and sauté for about 30 seconds until fragrant, filling your kitchen with a warm, spicy aroma.
  4. Pour in the vegetable broth and stir in the miso paste and mushroom soy sauce, whisking until smooth and combined. Bring the broth to a gentle simmer, allowing the flavors to meld for about 5 minutes.
  5. Rehydrate the dried wakame in the simmering broth for about 2 minutes until it softens and releases its oceanic aroma, giving the broth depth and briny notes.
  6. Add the cooked udon noodles into the broth, gently tossing with tongs to coat evenly, allowing the noodles to soak up the flavorful liquid.
  7. Layer the crispy tofu on top of the noodles, then simmer everything together for another 2 minutes to ensure the flavors meld and the tofu stays warm.
  8. Finish by sprinkling chopped green onions over the bowl for a fresh, crunchy contrast and a pop of color. Serve immediately while steaming hot and glossy.

Notes

For an extra layer of flavor, add a splash of sesame oil or chili oil before serving. The broth improves if made a day ahead and reheated gently.