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Nameko Mushroom Miso Soup なめこ汁

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    With an earthy, nutty flavor, and a wonderfully creamy texture, this Nameko Mushroom Miso Soup is a perfect way to welcome autumn!

    Japanese wooden bowls containing Nameko Mushroom Miso Soup.

    Have you tried this variety of Japanese mushrooms called nameko mushrooms (なめこ)? During autumn when mushrooms are in season, we often enjoy nameko mushrooms in our miso soup.

    Nameko mushrooms have a glossy viscid texture, and they are extremely slippery especially when you try to pick them up with a pair of chopsticks. When I was young, I would challenge myself by lifting the mushrooms one at a time without letting it fall back into the soup. Well, until my mom told me not to play with food. Now it’s time test out your chopstick skill, and enjoy the delicious Nameko Mushroom Miso Soup (なめこ汁) while you’re at it.

    A white Japanese donabe (earthenware pot) containing Nameko Mushroom Miso Soup.

    What Are Nameko Mushrooms?

    With small round caps and slender stems, nameko mushrooms are one of the popular culinary mushrooms in Japan. We call them the ‘slimy mushroom’ because of their slippery, gooey texture. In English, the mushrooms are also known as the Forest Nameko and the Butterscotch mushroom.

    Nameko come in clusters just like shimeji mushrooms, but you can easily tell them apart by its orange-amber color and a glossy sheen appearance. The unique texture is caused by a layer of natural gelatin that coats the surface of the mushrooms.

    When cooked, nameko mushrooms have a mild earthy flavor and a nutty aroma. In Japanese cuisine, nameko mushrooms are most commonly incorporated into miso soup. The gelatinous texture of the mushrooms helps to thicken and enhance the salty taste of the soup.

    Nameko Mushrooms

    In my elementary school days, boys used to call me nameko as my name Namiko sounded just like these mushrooms. I took it as a compliment since the mushrooms are small but mighty. 🙂

    Nameko Mushrooms

    Anyway, if you can find these nameko mushrooms locally, you should definitely give this miso soup a try! They are great for stir-fry, pasta, and soups! Nameko mushrooms are gaining popularity internationally, so it’s worth looking out for them. In case you wondered, I bought mine from a local American grocery store.

    Why Japanese Eat Slimy Foods

    It is common knowledge that slimy and sticky foods are good for our bodies and we try to eat them regularly. Examples of slimy and sticky foods include:

    • Natto (fermented soybeans)
    • Seaweed (mekabu, mozuku)
    • Okra
    • Taro and yamaimo/nagaimio, lotus root
    • and nameko mushrooms

    All of these foods have a common nutrient called mucin (except for seaweed). The sticky substance is made of a combination of protein and sugar, which helps clean the blood and stop blood sugar from going up. And this prevents stroke, heart attack, and hardening of the arteries.

    Mucin also protects the mucous membranes of digestive organs, which lowers the risk of gastritis and gastric ulcers. It also protects the mucous membranes in your nose and prevents you from getting a cold and has an anti-aging effect that stimulates the cells.

    As these superfoods have been a part of our diets growing up, we’ve learned to appreciate the natural texture of these foods. Nameko mushrooms are one of the easier slimy ingredients that you can try first. Natto should be the final level!

    Nameko Miso Soup being served fro a donabe to a wooden bowl.

    What Kind of Miso Goes Well with Nameko Mushrooms

    In Japan, nameko mushroom miso soup is typically made with Akadashi.

    Akadashi (赤だし) refers to a miso soup that is seasoned with Mame Miso (豆味噌) or miso made with soybeans, salt, and water. Popular in the Nagoya region, Mame Miso is darker, more reddish-brown than Kome Miso (米味噌), which is the most widely known miso that’s made with soybeans, rice koji, and salt.

    Akadashi Miso (赤だし味噌) is a combination of Mame Miso and Kome Miso. I’m not sure the official ratio but it contains more Mame Miso (100% soybean miso) than Kome Miso (soybean + rice koji miso).

    Hatcho Miso | Easy Japanese Recipes at
    Hatcho Miso (left) and Akadashi Miso (mix of Hatcho + Kome Miso)

    Today I’m using Organic Haccho/Hatcho Miso from Hikari Miso as Mame Miso with the addition of Kome Miso (regular miso). You can season your soup with just Hatcho Miso, but the taste is too strong and my recommendation is to mix with Kome Miso you have in the fridge.

    Haccho Miso (Hatcho Miso)

    Organic Haccho/Hatcho Miso from Hikari Miso is made from organic soybeans. The product is USDA Certified Organic. It has a distinctive dark color which comes from the longer fermentation of soybeans alone and no grains. The miso has a robust flavor and less sweetness and is perfect for noodle soup and katsu (deep fry) sauce.

    No Hatcho Miso? You can simply use whatever type of miso you have in the fridge to make this soup.

    Japanese wooden bowls containing Nameko Mushroom Miso Soup.

    Vegan/Vegetarian-Friendly Miso Soup

    You can make this miso soup completely vegan by using Kombu Dashi, which was made with kelp.

    In addition to the mushrooms, we normally add silken tofu to enhance the texture of the miso soup. I definitely recommend keeping it simple with two ingredients or just nameko mushrooms for the best result.

    What to Serve with Nameko Mushroom Miso Soup

    A white Japanese donabe (earthenware pot) containing Nameko Mushroom Miso Soup.

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    5 from 4 votes
    Japanese wooden bowls containing Nameko Mushroom Miso Soup.
    Nameko Mushroom Miso Soup
    Prep Time
    10 mins
    Cook Time
    10 mins
    Total Time
    20 mins

    With an earthy, nutty flavor, and a wonderfully creamy texture, this Nameko Mushroom Miso Soup is a perfect way to welcome autumn!

    Course: Soup
    Cuisine: Japanese
    Keyword: miso
    Servings: 4
    Author: Namiko Chen
    1. Gather all the ingredients.

      Nameko Mushroom Miso Soup Ingredients
    2. Add dashi in a pot and bring it to a simmer on medium-low heat.

      Nameko Mushroom Miso Soup 1
    3. Rinse the mushrooms thoroughly but quickly under running water, and discard the ends.

      Nameko Mushroom Miso Soup 2
    4. Cut the tofu into small cubes.

      Nameko Mushroom Miso Soup 3
    5. Once dashi is boiling, add nameko mushrooms and cook for 2-3 minutes. Turn off the heat.

      Nameko Mushroom Miso Soup 4
    6. For the best result, add miso in the soup right before serving.

      Nameko Mushroom Miso Soup 5
    7. Add tofu and bring it to a simmer (not boiling). Turn off the heat and serve. Enjoy!

      Nameko Mushroom Miso Soup 6
    To Store
    1. You can keep the leftover in the refrigerator for up to 2 days. I do not recommend making miso soup ahead of time as miso will lose its flavors.

    Recipe Notes

    Recipe by Namiko Chen of Just One Cookbook. All images and content on this site are copyright protected. Please do not use my images without my permission. If you’d like to share this recipe on your site, please re-write the recipe in your own words and link to this post as the original source. Thank you.

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