15-Minute Miso Noodle Soup
This miso noodle soup is a weeknight life saver, ready in 15 minutes and made almost entirely in one pot. It’s packed with savory miso, earthy mushrooms, and silky tofu in a broth that tastes like it simmered all afternoon.
The noodles soften right in the broth, and a handful of bok choy wilts just enough to keep its bright crunch. A final drizzle of sesame oil pulls everything together with almost no effort.
Why This Soup Works
The broth gets its depth from vegetable stock and miso paste, with no long simmer required. White miso gives a mild, sweet backbone that makes the soup a crowd pleaser, but red miso turns it bolder and saltier, and both work beautifully.
Everything cooks in sequence, so there is very little cleanup. The noodles soak up flavor as they sit, which means leftovers taste even more intense, though the texture will soften a bit.
Ingredients
- 4 cups vegetable broth: or dashi stock for a more traditional base
- 2 tbsp white miso paste: mild and slightly sweet; red miso is fine but saltier, so taste before adding extra soy sauce
- 5 oz fresh ramen noodles: see the table for dried noodle substitutions
- 7 oz firm tofu: drained and sliced into bite-sized cubes
- 4 oz shiitake mushrooms: stems removed, caps thinly sliced; cremini work just as well
- 4 baby bok choy: halved lengthwise and rinsed
- 1 garlic clove: smashed
- 1 inch fresh ginger: peeled and sliced into coins
- 2 scallions: thinly sliced, green and white parts separated
- 1 tsp soy sauce: or tamari for gluten-free
- 1 tsp toasted sesame oil: plus more for serving
Variations / Substitutions
- Swap the noodles: fresh udon or dried soba both work; rice noodles keep the dish gluten free.
- Change the protein: pan-seared shrimp or shredded rotisserie chicken make great swaps for the tofu.
- Add some heat: a spoonful of chili crisp or a drizzle of sambal oelek stirred in at the end gives the broth a nice kick.
- Extra vegetables: a handful of corn kernels or snap peas added with the bok choy adds sweetness and crunch.
For a cold noodle option, try our Sesame Soba Noodle Salad.
How to Make Miso Noodle Soup
Step 1: Simmer the Broth with Ginger and Mushrooms
Pour the 4 cups vegetable broth into a medium pot and add the garlic, ginger, and sliced mushrooms. Bring to a boil over high heat, then reduce to a gentle simmer and cook for 5 minutes, until the mushrooms are tender and the broth smells fragrant. If any foam rises to the surface, just skim it away.
Step 2: Cook the Noodles and Bok Choy
Drop the 5 oz fresh noodles into the simmering broth and nestle the bok choy halves on top. Cook for 3 to 4 minutes, until the noodles are tender and the bok choy leaves have wilted but the stems still have a little bite. Fish out and discard the garlic and ginger coins so the soup stays smooth.
Step 3: Ladle and Top with Tofu and Scallions
Remove the pot from the heat. Place the 2 tbsp miso paste in a ladle or a small bowl, add a splash of the hot broth, and whisk until smooth, then stir the miso mixture back into the soup along with the 1 tsp soy sauce. Divide the tofu and scallion greens among two large bowls, ladle the broth and noodles over them, and finish with a drizzle of sesame oil. Serve right away while the soup is steaming.
Tips for the Best Miso Noodle Soup
- The miso goes in off the heat. Boiling miso can make it taste harsh and grainy, so always stir it in once the pot is off the burner.
- Slicing the mushrooms thin helps them soften quickly and release their earthy flavor without a long simmer.
- If your soup tastes a little flat, a tiny splash of rice vinegar or an extra pinch of salt will brighten it right up.
- Letting the soup sit for a minute or two after ladling lets the tofu warm through gently without falling apart.
Cooking times for common noodles:
| Noodle type | Cook time in broth |
|---|---|
| Fresh ramen | 3–4 minutes |
| Dried soba | 4–5 minutes |
| Fresh udon (precooked) | 2–3 minutes |
| Rice noodles (thin) | 2–3 minutes |
Storing Leftover Soup
Keep leftover soup in an airtight container in the fridge for up to 2 days. The noodles will absorb a lot of liquid, so the bowl will be thicker when you reheat it. Warm it gently on the stovetop with a splash of water or broth, and never let it boil once the miso has been added.
Frequently Asked Questions
Can I use dried noodles instead of fresh?
Yes, but you may need to adjust the cook time. Check the table above and start tasting a minute early so the noodles don’t over-soften.
Is this soup vegan?
It is, if you use vegetable broth and a vegan miso paste (most white and red miso are naturally vegan, just double-check the label). All other ingredients are plant based.
How can I make this spicier?
Stir in a teaspoon of chili crisp or a small spoonful of gochujang when you add the miso mixture. You can also top each bowl with sliced fresh chili.
Can I make this soup without a dashi base?
Absolutely. A good vegetable broth works well, and you can deepen the flavor by adding an extra half teaspoon of soy sauce or a few drops of fish sauce if you are not keeping it vegan.
Miso Noodle Soup Recipe
Ingredients
Method
- Bring broth, garlic, ginger, and mushrooms to a boil, then simmer 5 minutes until mushrooms are tender.
- Add noodles and bok choy to the simmering broth and cook 3 to 4 minutes, until noodles are tender. Remove garlic and ginger.
- Off the heat, whisk miso with a little hot broth until smooth, then stir into the soup with soy sauce. Divide tofu and scallion greens between bowls, ladle soup over, and drizzle with sesame oil. Serve immediately.
