Quick 5-Ingredient Mushroom Miso Soup
Mushroom miso soup is a simple, savory dinner that comes together in about 15 minutes. The earthy mushrooms and salty miso make a broth that feels much more complex than its short ingredient list.
This version keeps things streamlined so you can get a warm bowl on the table without a trip to a specialty store. Grab a few fresh mushrooms, a tub of miso paste, and you are almost there.
What Makes This Miso Soup So Good
It is all about the deep umami you get from cooking mushrooms directly in the broth. The miso stirs in at the end, keeping its pungent, slightly sweet character intact.
Soft tofu cubes soak up that savory liquid, and fresh scallions add a crisp, oniony bite. Every spoonful has something interesting, but the whole thing takes less effort than boiling pasta.
Ingredients
- 4 cups dashi broth (or vegetable broth): kombu dashi keeps it plant-based; use instant powder for speed.
- 8 oz mushrooms (shiitake or cremini), sliced about 1/4 inch thick
- 1/4 cup white miso paste: the mild sweetness works well here.
- 7 oz firm tofu, cut into small cubes
- 2 scallions, thinly sliced for garnish
Variations / Substitutions
- Protein: swap tofu for shredded cooked chicken, or add a soft-cooked egg on top.
- Mushrooms: try a mix of enoki, oyster, or king trumpet mushrooms for different textures.
- Spice: add a teaspoon of grated fresh ginger to the broth, or finish with a drizzle of chili crisp.
- Dairy-free: this soup is already dairy-free.
For another quick soup, try my Simple Egg Drop Soup.
How to Make Mushroom Miso Soup
Step 1: Simmer the Mushrooms
Pour the 4 cups dashi broth into a medium pot and set over medium heat. Once the broth starts to simmer, add the sliced mushrooms. Cook them for about 5 minutes, until they soften and the broth takes on a savory mushroom scent.
You will see the mushrooms shrink a bit and the liquid will deepen in color. That is a good sign the flavor is building.
Step 2: Whisk in the Miso
Turn the heat down to low so the broth stops bubbling. Ladle about half a cup of the hot broth into a small bowl and whisk in the 1/4 cup miso paste until it is completely smooth and no lumps remain.
Pour the miso mixture back into the pot and stir gently. Keep the heat low and do not let the soup boil again; boiling can mute the miso’s flavor.
Step 3: Add the Tofu
Gently slide the cubed tofu into the pot. Let it warm through for 2 minutes, just until the cubes are hot all the way through.
The tofu will absorb some of the broth, becoming silky and savory. Taste the broth at this point and add a pinch of salt only if it needs it, though the miso usually carries the seasoning.
Step 4: Ladle and Serve
Divide the soup among four bowls, making sure each one gets plenty of mushrooms and tofu. Scatter the sliced scallions over the top and serve right away, while it is still steaming. The scallions add a fresh, sharp bite that cuts through the richness.
A Few Tips for the Best Miso Soup
- Slice the mushrooms evenly so they cook at the same rate. Thin slices also cook faster.
- If you have a few extra minutes, sauté the mushrooms in a teaspoon of sesame oil before adding the broth. It gives a deeper, nuttier flavor.
- Leftover soup is great poured over udon noodles for a quick lunch the next day.
Scale it to your serving size:
| Servings | Dashi Broth | Miso Paste | Sliced Mushrooms | Firm Tofu |
|---|---|---|---|---|
| 2 | 2 cups | 2 tbsp | 4 oz | 3.5 oz |
| 4 | 4 cups | 1/4 cup | 8 oz | 7 oz |
Storing Leftover Miso Soup
- Refrigerate: any leftover soup keeps well in an airtight container for up to 3 days. The mushrooms and tofu hold up nicely.
- Reheating: warm the soup gently on the stove over low heat, stirring occasionally. Do not let it boil, or the miso loses its character.
What to Serve With Mushroom Miso Soup
A bowl of steamed short-grain rice turns this soup into a more filling meal. The rice soaks up the broth nicely. For a fresh contrast, serve a quick cucumber salad with rice vinegar and sesame seeds. If you want something crispy, pan-fried gyoza are a classic pairing that never feels fussy.
Frequently Asked Questions
Can I use red miso instead of white?
Yes, red miso is saltier and more intense. Start with 3 tablespoons instead of the full 1/4 cup and adjust to taste.
Can I make the broth ahead of time?
You can simmer the mushrooms in broth a day ahead and refrigerate. Stir in the miso and add the tofu just before serving for the best texture.
What if I only have dried shiitake mushrooms?
Rehydrate a handful of dried shiitakes in warm water for 20 minutes, then slice and use them. The soaking liquid can replace part of your broth for extra depth.
Is this soup gluten-free?
Miso paste is often made from soybeans and rice or barley; check the label to make sure it is gluten-free. Use a certified gluten-free miso and tamari-free broth to keep the whole dish safe.
Mushroom Miso Soup Recipe
Ingredients
Method
- In a pot, bring dashi to a simmer over medium heat. Add mushrooms and cook 5 minutes until tender.
- Turn heat to low. Ladle some broth into a bowl, whisk in miso until smooth, then stir back into pot.
- Add tofu, warm through 2 minutes without boiling. Taste and adjust salt if needed.
- Ladle into bowls, top with scallions, serve immediately.
