Japanese Harusame Noodle Soup

Golden Japanese Harusame Noodle Soup steams in a ceramic bowl, revealing glass noodles, julienned carrots, and tender shiitake mushrooms. Save
Golden Japanese Harusame Noodle Soup steams in a ceramic bowl, revealing glass noodles, julienned carrots, and tender shiitake mushrooms. | cookingwithavery.com

This Japanese Harusame Noodle Soup combines delicate glass noodles with crisp vegetables in a warm, savory dashi broth. The dish comes together in just 25 minutes, making it ideal for weeknight dinners or light lunches. julienned carrots and shiitake mushrooms add texture while baby spinach provides freshness. Firm tofu cubes offer protein, though you can substitute shredded chicken if desired. The broth balances soy sauce, mirin, and sesame oil for authentic umami flavor.

Harusame noodles are naturally gluten-free and quick-cooking, requiring only a brief soak in boiling water. Garnish with toasted sesame seeds and fresh spring onion for added aroma and crunch. The soup is dairy-free and low-fat, fitting easily into various dietary preferences while delivering satisfying comfort.

Steam was already fogging up my tiny apartment windows when I first made this soup. I had discovered harusame noodles in the back of an Asian market aisle and decided to experiment. Something about those translucent strands promised a lighter, gentler kind of comfort than the heavy ramen bowls I was used to.

My roommate kept wandering into the kitchen, drawn by that sesame and dashi fragrance that somehow fills every corner of a room. We ended up eating huddled over steaming bowls on the couch while watching rain streak down the windows. Now whenever gray weather rolls in, I reach for glass noodles without even thinking about it.

Ingredients

  • 5 cups dashi stock: The soul of Japanese cooking, but chicken or vegetable broth works beautifully in a pinch
  • Harusame noodles: These delicate glass noodles soak up flavor while maintaining a satisfying springy texture
  • Shiitake mushrooms: Fresh slices add an earthy depth that makes the broth taste like its been simmering for hours
  • Firm tofu: Cubed tofu provides gentle protein without overpowering the delicate broth

Instructions

Build the broth foundation:
Combine dashi, soy sauce, mirin, sesame oil, and salt in a large saucepan over medium heat, letting it come to a gentle simmer. This creates that perfect balance of salty, sweet, and nutty.
Soften the aromatics:
Add julienned carrots and sliced shiitake mushrooms, letting them simmer for 5 minutes until they just begin yielding to the touch. Watch how the mushrooms release their earthy essence into the liquid.
Prep the noodles separately:
While vegetables cook, cover harusame noodles with boiling water in a heatproof bowl for 4 to 5 minutes until tender. This prevents them from overcooking and getting mushy in the soup.
Add final touches:
Toss in tofu cubes for 2 minutes, then wilt spinach or bok choy for just 1 minute to keep it vibrant. Divide drained noodles among bowls and ladle the steaming broth and vegetables over them.
A close-up of Japanese Harusame Noodle Soup with vibrant baby spinach and tofu cubes swimming in a savory dashi broth. Save
A close-up of Japanese Harusame Noodle Soup with vibrant baby spinach and tofu cubes swimming in a savory dashi broth. | cookingwithavery.com

Last winter, my friend who swore she hated soup asked for seconds. Watching her carefully tilt the bowl to get every drop reminded me why simple food often becomes the most memorable.

The Broth Secret

I learned that the broth needs to taste slightly oversalted on its own since the noodles will absorb some of that seasoning as they sit. Adding a final drizzle of sesame oil right before serving makes everything sing.

Noodle Timing

Harusame can go from perfectly tender to a tangled mess in seconds. Set a timer and taste them frequently during that last minute of soaking.

Make It Your Own

This soup gracefully welcomes additions without losing its character. Wakame seaweed adds a lovely brininess, while enoki mushrooms create these beautiful floating clusters in the broth.

  • Try shichimi togarashi for a gentle warming kick
  • Shredded chicken transforms it into a more substantial meal
  • Extra spring onions never hurt anyone
Serve Japanese Harusame Noodle Soup garnished with green spring onions and toasted sesame seeds for a comforting, healthy meal. Save
Serve Japanese Harusame Noodle Soup garnished with green spring onions and toasted sesame seeds for a comforting, healthy meal. | cookingwithavery.com

There is something profoundly grounding about a bowl of broth this clear and bright. It reminds me that comfort does not always need to be heavy.

Recipe FAQs

Harusame are Japanese glass noodles made from mung bean starch, also known as mung bean vermicelli. They are transparent, gluten-free, and have a delicate texture that absorbs flavors beautifully in soups and stir-fries.

Yes, simply substitute traditional dashi stock with vegetable broth. Standard dashi is made with bonito flakes, but many supermarkets now offer vegetarian dashi alternatives or you can use quality vegetable stock as a base.

Store the broth and vegetables separately from the noodles in airtight containers in the refrigerator for up to 2 days. Glass noodles continue to absorb liquid and can become mushy, so keep them apart until ready to reheat and serve.

Besides firm tofu, you can add shredded cooked chicken, pork, or shrimp. For vegetarian options, try edamame beans, soft-boiled eggs, or extra mushrooms. Add protein during the last few minutes of simmering to heat through.

The basic version is mild and focuses on umami flavors. If you enjoy heat, add chili oil, fresh sliced chilies, or shichimi togarashi Japanese spice blend as garnish. Adjust spice level to your preference.

Absolutely. Snow peas, bamboo shoots, corn, bean sprouts, or diced zucchini work well. You can also add wakame seaweed or enoki mushrooms for authentic Japanese flavor and texture. Adjust cooking times accordingly.

Japanese Harusame Noodle Soup

Light Japanese glass noodle soup with vegetables in savory dashi broth. Ready in 25 minutes.

Prep 10m
Cook 15m
Total 25m
Servings 4
Difficulty Easy

Ingredients

Broth

  • 5 cups dashi stock or low-sodium chicken broth
  • 2 tablespoons soy sauce
  • 1 tablespoon mirin
  • 1 teaspoon sesame oil
  • 1/2 teaspoon salt

Noodles

  • 3.5 ounces harusame Japanese glass noodles

Vegetables & Protein

  • 1 medium carrot, julienned
  • 3.5 ounces shiitake mushrooms, thinly sliced
  • 2 ounces baby spinach or bok choy, chopped
  • 1 spring onion, finely sliced
  • 3.5 ounces firm tofu, cubed

Garnish

  • 1 teaspoon toasted sesame seeds
  • Extra spring onion, finely sliced

Instructions

1
Prepare the Broth Base: Combine dashi stock, soy sauce, mirin, sesame oil, and salt in a large saucepan. Bring to a gentle simmer over medium heat, stirring to dissolve salt.
2
Cook Root Vegetables: Add julienned carrots and sliced shiitake mushrooms to the simmering broth. Cook for 5 minutes until carrots begin to soften.
3
Add Tofu: Gently place cubed tofu into the broth. Simmer for 2 minutes to allow tofu to absorb flavors.
4
Prepare Glass Noodles: Place harusame noodles in a heatproof bowl. Cover with boiling water and soak for 4-5 minutes until tender. Drain thoroughly and divide among four serving bowls.
5
Wilt Leafy Greens: Add spinach or bok choy to the simmering broth. Cook for 1 minute just until wilted but still vibrant green.
6
Assemble and Serve: Ladle hot broth with vegetables and tofu over the noodles in each bowl. Garnish with toasted sesame seeds and extra spring onion. Serve immediately while hot.
Additional Information

Equipment Needed

  • Large saucepan
  • Heatproof bowl
  • Ladle
  • Chef's knife and cutting board

Nutrition (Per Serving)

Calories 140
Protein 7g
Carbs 23g
Fat 3g

Allergy Information

  • Contains soy from soy sauce and tofu
  • Dashi stock may contain fish from bonito flakes; substitute vegetable broth for vegetarian preparation
Avery Mitchell

Passionate home cook sharing easy recipes, cooking tips, and meal ideas for food lovers.