Try this delicious and hearty bowl of Japanese sweet potato miso soup! Made with savory miso paste and tender sweet potatoes, this soup will surely leave you feeling satisfied and nourished!

Whether you are a big fan of miso soup or a first-timer, this recipe is easy to follow and promises to deliver a rich, umami taste. With the added sweetness and nutrition of satsumaimo, this soup is the perfect comfort food for any time of the day!
- This recipe is for you if:
- You love Japanese sweet potatoes.
- You are looking for a Japanese sweet potato soup recipe.
- You want to try an easy satsumaimo recipe.
Let me show you how to make it. If you want to check the recipe immediately, please visit the link below. Let's get started!
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About This Recipe
- Japanese sweet potato recipe
- Savory and sweet miso soup
- Ready in under 10 minutes
- Use vegan dashi powder
📋 Ingredients
Here are the ingredients (amounts are in the recipe card below).
- Japanese sweet potatoes: See below.
- Onion: Use regular yellow onion.
- Aburaage: It is made from tofu that has been deep-fried until golden and crispy. A common ingredient for miso soup.
- Dashi: I use kombu dashi powder (vegan) for this recipe. You can use other types of dashi powder. See "What is dashi" for more information.
- Miso paste: It's made with soybeans, rice koji, and salt. Please pick an authentic one that doesn't include any other ingredients in it.
Japanese Sweet Potatoes
Japanese sweet potatoes, also known as satsumaimo, are easily distinguished by their reddish-purple skin and yellowish-white flesh.
They are typically sweeter and starchier than other sweet potato varieties. They are commonly used in Japanese cuisine for sweet and savory dishes, such as tempura, yaki imo (roasted sweet potato), and baked treats.
Where to Buy Japanese Ingredients
If you live in the US, you can find Japanese ingredients in the list below.
- Japanese market: Mitsuwa Marketplace, Marukai
- Asian market
- Whole Foods Market
- Health food stores
- Online stores: Instacart, Walmart, Amazon
🔪Instructions
Ok, let me show you how to make it!
- Cut ingredients.
- Bring to a boil.
- Simmer for 3 to 4 minutes.
- Add miso paste and dissolve it.
Step 1
Cut sweet potato, onion, and aburaage into bite-size pieces.
Please put them in a medium saucepan.
Step 2
Add dashi powder and water to the saucepan, and bring to a boil on medium heat.
Step 3
Lower the heat and simmer for 3 to 4 minutes.
Step 4
Turn off the heat and add miso paste using a miso measuring whisk (if you don't have a whisk, I highly recommend getting one!).
Stir gently until it dissolves.
Serve
Here you go! Your hearty satsumaimo miso soup is ready. You can adjust the amount of miso paste based on your preference. Enjoy!
Helpful Tips
- Always add miso paste after turning off the heat. If you boil the miso, you will lose the excellent flavor.
- It's easy to add miso paste with a miso measuring whisk.
Storage
Fresh miso soup is the best, but if you have leftovers, let it cool and keep it in the fridge.
Transfer the soup to a glass jar and store it in the fridge. It will remain good for 2 to 3 days.
What To Serve With
You can serve your soup with Japanese rice and other traditional dishes to give it a more authentic feel. Here are some recipes you might want to try:
- Japanese Steamed Rice
- Vegan Vegetable Gyoza (dumplings)
- Wakame Seaweed Salad
- Sauteed Shiitake Mushrooms
How To Make Miso Soup: Step-By-Step Guide
If you're a fan of homemade miso soup, be sure to check out my comprehensive guide: How To Make Miso Soup: Step-By-Step Guide. It's a perfect resource for those who want to learn how to make miso soup from scratch!
Varieties of Miso Soup
Try these homemade miso soup recipes. They are tasty, easy, and ready in under 10 minutes!
Thanks For Stopping By!
Thank you for taking the time to read my blog♡ If you've tried this recipe (or any other recipe on the blog), please give it a star rating below!
Also, feel free to leave comments if you have any questions. I love hearing from you!
More Japanese Sweet Potato Recipes You Might Like
- Japanese Sweet Potato Tempura
- Yaki Imo (Roasted Japanese Sweet Potato)
- Daigaku Imo
- Creamy Japanese Sweet Potato Soup
- Crispy Japanese Sweet Potato Fries
📖 Recipe
Japanese Sweet Potato Miso Soup
Print Pin SAVEEquipment
- Medium saucepan 18cm /7 inches
Ingredients
- ½ Japanese Sweet Potato, 100g
- ¼ Onion
- 2 Aburaage
- 1½ teaspoon Dashi powder, 5g
- 3 c Water, 720ml
- 2 tablespoon Miso Paste, 36g, 1.3oz
Instructions
- Preparation: Cut sweet potato, onion, aburaage into bite size pieces.
- Bring to a boil: Put the ingredients, dashi powder, and water in a saucepan, and bring to a boil on medium heat.
- Simmer: Lower the heat and simmer for 3 to 4 minute.
- Add miso paste: Turn off the heat, add miso (use a miso measuring whisk if you have it), and stir gently until it dissolves.
Notes
- Storage: 3 days in the fridge.
- If the taste of the soup is light to you, feel free to add more miso paste.
- If you want to try making dashi from scratch, here are the recipes: vegan dashi (shiitake mushroom and kombu), awase dashi (bonito and kombu), niboshi dashi (dried sardine)
- Always add miso paste after turning off the heat. If you boil the miso, you will lose the excellent flavor.
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