Name: Japanese Sweet Potato Soup
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Ingredients: 1 Japanese Sweet Potato (medium size, 180g); ½ Onion; 1 Tbsp Vegetable Oil; 1 tsp Vegetable Bouillon Powder (5g); 1½ cups Water; 1 cup Soy Milk; Salt to taste

4.91 from 10 votes

Leave a Review!

Servings servings

JUMP TO RECIPE & VIDEO

This Japanese Sweet Potato Soup has a creamy texture and natural sweetness, making it the perfect choice for a heartwarming meal!

Looking for more Japanese sweet potato dishes? Try my Yaki Imo, Japanese Sweet Potato Tempura, or Japanese Sweet Potato Miso Soup!

Japanese sweet potato soup served in a bowl.

Featured Comment

From Joy: “Hi Juri, I want to thank you for all your amazing recipe, I ❤️❤️❤️ them all, forever grateful for you 🌺🧸🌺”

I’ll walk you through the ingredients and step-by-step instructions. I hope you enjoy it!

Why You Will Love This Recipe

It’s easy to prepare with simple ingredients.
It’s vegan and gluten-free.
No added sugar – enjoy the natural sweetness.

Japanese Sweet Potatoes

Japanese sweet potatoes, or satsumaimo, have reddish-brown skin and creamy yellow-white flesh. They are typically sweeter, firmer, and starchier than other varieties and hold their shape well during cooking. Their versatility makes them a staple for sweet and savory Japanese dishes.

Recipe Ingredients

You’ll need the following ingredients to make this Japanese Sweet Potato Soup:

Ingredients for Japanese sweet potato soup.

Japanese Sweet Potato determines the sweetness and creaminess of this soup. You can find it in a Japanese grocery store or Asian market.
Vegetable Bouillon Powder adds rich flavor and taste. You can substitute it with vegetable broth if you prefer.
Soy Milk is my preferred choice. However, you can substitute it with other dairy-free options, such as coconut milk, almond milk, or even heavy cream, to add an extra creamy texture.

How To Make Japanese Sweet Potato Soup: STEP BY STEP

Here are some quick visual instructions! For the video and all the detailed ingredients and instructions, go to the printable recipe card below.

Step 1

Peel and cut the sweet potatoe and soak for 5 minutes.

Step 2

Sauté sliced onions in a saucepan, then simmer with sweet potatoes, vegetable bouillon, and water until tender.

Step 3

Transfer the soup to a blender container and add soy milk. Blend until smooth and creamy.

Step 4

Transfer the soup back to the saucepan, warm it up, and season it with salt.

Serve the sweet potato soup in a bowl and enjoy its warmth and comfort. Add crispy croutons for extra crunch, and sprinkle garlic powder and black pepper for more flavor. For more comforting soups, try my creamy kabocha soup, cream stew, or mushroom soup!

Recipe Tips

Japanese sweet potato skins are edible and packed with nutrients like other sweet potato varieties. While I usually cook them with the skins on, I peel them for this soup recipe to achieve a smooth, creamy white color.
Soaking sweet potatoes helps remove any bitterness and prevents them from changing or darkening in color.

Want More Plant-Based Ideas?

Download 10 Vegetarian Recipes

More Japanese Sweet Potato Recipes You Will Love

Leave a Rating!

I hope you enjoy this Japanese Sweet Potato Soup! If you try it, don’t forget to leave a rating to share your thoughts—I love hearing from you!

Japanese Sweet Potato Soup

4.91 from 10 votes

Prep: 5

Cook: 10

Total: 15

Servings: servings

Author: Juri Austin

This Japanese Sweet Potato Soup has a creamy texture and natural sweetness, making it the perfect choice for a heartwarming meal!

Print Recipe Pin Recipe

Equipment

Medium saucepan
Blender

Ingredients

Instructions

Prepare Vegetables: Slice the onion thinly. Peel and cut the sweet potato into small pieces. Soak the sweet potatoes in water for five minutes, then drain.
Sauté Onion: Heat the oil in a saucepan and sauté the sliced onion over low heat until tender.
Simmer: Add the sweet potato, water, and bouillon powder to the saucepan. Cover, bring to a boil, then simmer on low heat for 10 minutes or until tender.
Blend: Transfer the soup to a blender, add soy milk, and blend until smooth and creamy.
Finish: Return the soup to the saucepan and season with salt. Turn off the heat just before boiling. Serve in a soup bowl, and enjoy!

Video

Notes

Storage: Transfer the soup to an airtight container and store it in the refrigerator. It can be stored for 3 to 4 days.
Japanese sweet potato skins are edible and packed with nutrients like other sweet potato varieties. While I usually cook them with the skins on, I peel them for this soup recipe to achieve a smooth, creamy white color.
Soaking sweet potatoes helps remove any bitterness and prevents them from changing or darkening in color.
1 cup: 240ml

Nutrition

Serving: 1servingCalories: 101kcalCarbohydrates: 12gProtein: 2g

This nutritional information is estimated and provided for general reference only.

Course: Soup

Cuisine: Japanese

Keyword: japanese sweet potato soup

Did You Make This Recipe?

Please !

Juri Austin

Hi! I’m Juri, founder of Chef JA Cooks and the creator and photographer of this site. I’m here to guide you in authentic yet easy-to-follow Japanese recipes! Let’s explore the world of Japanese cuisine together!

Learn More About Juri

4.91 from 10 votes (7 ratings without comment)

6 Comments

Kim says:

Jan 20, 2024 at 7:35 AM

Delicious soup!

1. Juri Austin says:
  
  Jan 20, 2024 at 7:57 AM
  
  Thank you for your comment, Kim! I’m happy to hear you like it!
  
Joy says:

Jun 8, 2023 at 10:03 AM

Hi Juri

I want to thank you for all your amazing recipe, I ❤️❤️❤️ them all, forever grateful for you 🌺🧸🌺

1. JURI says:
  
  Jun 8, 2023 at 3:31 PM
  
  Thank you so much for your kind words, Joy! It’s my pleasure to share my recipes with you 🙂
  
Gianfranco says:

May 13, 2023 at 2:12 PM

Simple delicious and healthy!

1. JURI says:
  
  May 13, 2023 at 7:04 PM
  
  Thank you for your comment! Glad you liked the soup!