Zosui is a comforting Japanese rice soup cooked in a savory dashi broth with vegetables, eggs, mushrooms, and sometimes chicken. It‘s a mild and nourishing meal that helps refuel your energy. With pantry-ready ingredients, you can easily make it in no time! {Vegan-friendly}
Regardless of the season, I always welcome a comforting, healthy soup. If you’re like me, this Japanese Rice Soup called Zosui (雑炊) is for you!
You’ll need only minimal ingredients, which can be any leftover scraps of vegetables or mushrooms in the refrigerator. Ready in less than 30 minutes, this bowl of warm rice soup will instantly reenergize and restore your energy.
Table of Contents
What is Zosui?
Zōsui (雑炊) is a Japanese rice soup made from pre-cooked rice and dashi broth that’s seasoned with soy sauce. Some may describe it as the Japanese version of congee, except Zosui is more robust in texture. The rice grains are intact while submerged in the soup broth.
It is generally served to those who are sick or under the weather. Therefore, Zosui is often cooked with simple and easy-to-digest ingredients, such as a small amount of vegetables, mushrooms, and eggs.
If you want to make it more hearty, you can add protein like meat and seafood as I did in this recipe. It can also be totally vegan by using kombu dashi and vegan-friendly ingredients.
Zosui is not a common restaurant menu, but some places offer it at the end of a hot pot meal as an option. The restaurant staff will make it right at the table by reusing leftover soup from the hot pot. It’s an instant fill-me-up kind of dish.
What is the Difference between Zosui vs. Ojiya?
If you’re familiar with Japanese food, you may have heard of Ojiya (おじや), another popular rice-based soup during the cold season.
Since rice is simmered in a dashi broth in both dishes, Zosui and Ojiya have a lot in common.
Many people use the words Ojiya and Zosui interchangeably, and the usage varies by region and household. However, there are some common differences between them:
Zosui (雑炊)
- Cooked rice is rinsed under water first to remove excess starch.
- It does not get cooked too long so the shape of the rice is retained.
- The broth is seasoned only with soy sauce.
Ojiya (おじや)
- Rice is never rinsed.
- Ojiya can be cooked for a longer time and the rice can be mushy (and no visible shape of the rice).
- The broth is seasoned with miso or soy sauce, but not overly flavored.
Ingredients for Japanese Rice Soup
- Dashi broth – Unlike chicken broth or vegetable broth, dashi can be made pretty quickly, even from scratch. In this recipe, I used a dashi packet, which makes it even easier but tastes a lot better than an instant dashi powder. And if you happen to have some leftover hot pot broth, you can definitely use it to make Zosui.
- Vegetables – I used green onions and carrots today.
- Mushrooms – I used shiitake mushrooms.
- Eggs
- Chicken or whatever that’s available in your refrigerator.
- Cooked rice – Most Japanese keep the leftover rice frozen, and here’s how to store cooked rice.
How to Make the Best Zosui
- Make dashi.
- Cut all the ingredients and rinse the cooked rice.
- Start cooking chicken, followed by dense vegetables, mushrooms, and rice.
- Once everything is cooked through, drizzle eggs and sprinkle green onions.
- Serve warm!
Vegan-Friendly Zosui Ingredients
Zosui is super flexible and easily customizable, and you can make it any way you like. You can use any veggies, but here are some additions for vegan/vegetarian zosui:
- Tofu – silken tofu, aburaage (fried tofu pouch), or atsuage (thick fried tofu)
- Japanese mushrooms – shiitake, shimeji, maitake, enoki, king oyster
- Vegan-friendly kimchi
- Umeboshi
- Natto
- Wakame seaweed
- Shredded nori (kizami nori)
- Soy milk – this makes the dish tonyuu zosui (豆乳雑炊). It has a creamy and sweet flavor and makes a delicious rendition for vegans or vegetarians.
Believe it or not, this Japanese Rice Soup takes less than 30 minutes to cook! It’s not only warm and delicious, but it’s also full of nutrition to give us the strength to recover from sicknesses.
Other Comforting Rice Dishes
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Zosui (Japanese Rice Soup)
Video
Ingredients
For the Broth
- 3 cups dashi (Japanese soup stock) (use standard Awase Dashi, dashi packet or powder, or Vegan Dashi)
- 2 tsp usukuchi (light-colored) soy sauce (or regular soy sauce)
- ½ tsp Diamond Crystal kosher salt
For the Zosui
- 6 oz boneless, skinless chicken thighs (about 1–2 pieces; skip for vegan/vegetarian)
- 1 inch carrot (1.4 oz, 40 g)
- 2 shiitake mushrooms (2.8 oz, 80 g)
- 2 green onions/scallions
- 1½ cups cooked Japanese short-grain rice (10.6 oz; cold, pre-cooked rice works well; or use freshly made)
- 1 large egg (50 g each w/o shell) (skip for vegan)
- ½ tsp toasted white sesame seeds
- ⅛ tsp white pepper powder
Instructions
- Before You Start: For the steamed rice, please note that ¾ cup (150 g, 1 rice cooker cup) of uncooked Japanese short-grain rice yields 2¼ US cups (330 g) of cooked white rice. See how to cook short-grain rice with a rice cooker, pot over the stove, Instant Pot, or donabe. Now, gather all the ingredients.
To Prepare the Dashi
- In a large pot (I used a donabe), add 3 cups dashi (Japanese soup stock). You can make Awase Dashi or Vegan Dashi from scratch or use a dashi packet, as I demonstrate here. First, add 3 cups water and 1 dashi packet to the donabe.
- Cover the lid and slowly bring the water to a boil on low heat. After a few minutes, open the lid and shake the bag to release more flavor.
- Close the lid and continue to heat the broth. Once boiling, cook for 3 minutes and discard the dashi packet. Keep the lid closed and set aside.
To Prepare the Ingredients
- Remove the excess fat from 6 oz boneless, skinless chicken thighs and cut the meat into small, bite-sized pieces.
- Discard the tough stems of 2 shiitake mushrooms and thinly slice the caps.
- Cut 1 inch carrot into quarters lengthwise and thinly slice them crosswise.
- Slice 2 green onions/scallions into thin rounds and put them in a small bowl. Set aside for garnish.
- Measure 1½ cups cooked Japanese short-grain rice. If you’re using cold pre-cooked rice, put it in a fine-mesh sieve and rinse under running water to remove any excess starch. Shake and drain well. If you’re using freshly made rice, you can skip rinsing.
To Cook the Zosui
- To the hot dashi broth, add the chicken.
- Close the lid and bring it to a boil on medium-low heat. Once boiling, use a fine-mesh skimmer to skim the scum and foam on the surface.
- Add the carrot and cook covered until tender, about 4–5 minutes.
- Once the carrot is tender, add 2 tsp usukuchi (light-colored) soy sauce and ½ tsp Diamond Crystal kosher salt to the broth.
- Add the shiitake mushrooms and well-drained cooked rice. Cover to cook for 10 minutes.
- Beat 1 large egg (50 g each w/o shell) in a bowl or a measuring cup with a pouring spout.
- To create fluffy egg ribbons, slowly drizzle a thin stream of the beaten egg over the soup surface in a circular pattern, starting from the center and spiraling outward. For better control, place your cooking chopstick vertically at the edge where you pour the egg. Avoid pouring the egg in the same place.
- Add some of the green onion and ½ tsp toasted white sesame seeds. Sprinkle ⅛ tsp white pepper powder at the end.
- Cover with the lid and bring the pot to the table to serve in individual bowls. Enjoy!
Nutrition
Editor’s Note: This post was originally published on March 5, 2020. It’s been republished in January 2022.
Can this be reheated? Or will the rice loose its shape and become mushy?
Hello there, Abby! Thank you for trying Nami’s recipe.
Because the rice in the Zosui absorbs all the liquid over time, we recommend adding Dashi for better texture when reheating. Even so, the rice will begin to lose its shape.
We hope you found this information helpful!
I made this tonight because I’m feeling under the weather. I didn’t have chicken but it still came out delicious! I only had instant rice so I couldn’t really rinse the starch away so in the end this dish was more like porridge than soup but it was yummy and warm so I didn’t mind. The green onions and white pepper at the top made this especially yummy.
Hello there, JoAnna. Thank you so much for trying Nami’s recipe and sharing your experience with us.
We’re glad you enjoyed the dish.
Happy Cooking!
How do I add salmon to zosui?
Hello Naomi! Thank you for taking the time to read Nami’s post.
Our suggestion is to use baked salmon, which can be added in step 5 while cooking the rice. Simply cook for 3-5 minutes, and then follow step 6. Additionally, if you have any salmon bones or head parts, you can make a fish broth by following the recipe provided in the link below to replace the Dashi. We hope this information is helpful to you.
https://www.justonecookbook.com/tai-meshi-with-leftover-baked-sea-bream/
What size of donabe did you use.
Hi Fiona! Thank you for trying Nami’s recipe.
The Donabe is size 8 (for 2-3 people), but size 9 should work too.
We hope this helps!
Hi Naomi, does the dish need to be consumed on the day? I’m thinking the rice would absorb a lot of the water if left until the next day.
Hi Jess! Thank you very much for trying Nami’s recipe!
Yes. It’s better to consume on the same day, so the rice doesn’t absorb soup/liquid. But if you prefer, you can save them for the next day in the refrigerator.
We hope this helps!
I have leftover kinoko gohan. Can I use this for ojiya or zosui? I do have leftover nabe broth that I can use as the base, but I’m concerned that the rice will get mushy. Let me know if this is okay – I am not feeling well today and would love the comforting taste of an easy, nourishing soup.
Hi H.Stave, Thank you very much for reading Nami’s post and trying her recipe!
Yes, you can use leftover Nabe broth and cooked rice for this recipe. We are unsure what type of rice you used for your Kinoko Gohan. But if you shorten the cooking time at Step 5, it should work without being mushy rice.
We hope this works for you and you get better soon.
Can you please explain the difference between dashi packets and instant dashi powder packets? I am familiar only with the powder. Thank you so much for your blog and your patience with subscribers.
Hi Shunji! Thank you very much for reading Nami’s post!
Dashi packets include grind fish, bonito flakes (katsuobushi), and kelp in the little bag. And it is easy to simmer and the most convenient way of making delicious dashi. https://www.justonecookbook.com/dashi-packet/
Dashi Powder is the quickest way to make dashi or add dashi flavor to a dish. Simply sprinkling dashi powder over the food while cooking or adding to the water to make instant dashi broth. https://www.justonecookbook.com/dashi-powder/
We hope this is helpful!🙂
I made this and the flavors are good! But somehow when I made it it was not a soup at all, after adding the rice it soaked up all the liquid and it was more of a soaked rice dish, no broth left for soup, I added 1 and 1/2 cup of cooked rice to the dish per the recipe. Not sure what I did wrong and from the comments I seem to be the only person with this problem.
Hi Jenny! Thank you very much for trying Nami’s recipe!
We are unsure how long you cooked the soup broth on medium-low heat before adding the rice, but the Dashi broth might evaporate. If it happened again, please add dashi, and adjust the flavor with soy sauce to your taste.
We hope this helps!
I’ve made this recipe before and loved it! Can you put daikon in it? I have leftover daikon in my fridge from making tsukemono and am looking for something to use it in without having to go to the store! 美味しいレシピをいつも教えてくれてありがとうございます!
Hi Emily! Thank you very much for trying Nami’s recipe and for your kind feedback!
Yes! You can add sliced daikon and add them at step 3. You can also add spinach, onion, napa cabbage, etc.! いろんな野菜を入れて雑炊を楽しんでくださいね!🙂
Nami,
I am wondering, if I wanted to prepare this ahead of time so that it could be a quick lunch option for a few days this week, what parts would you make ahead and have ready, and what parts would you have maybe prepped but not cooked? I have probably enough ingredients for 3x the recipe as written.
Thank you for playing a big part in teaching me Japanese culinary technique. 😁
Hi Nicholas! Thank you very much for trying Nami’s recipe!
We would recommend cooking this at the time you enjoy the dish. You can prepare it ahead of time, but if you cook ahead of time, the rice will absorb all the soup from the pot, and it will be no liquid left. However, some people prefer that way.
We hope this is helpful.
Do you think I could make the broth up to the point where rice is added and then refrigerate it along with rice and the remaining ingredients? Maybe it will save a little bit of time (although I will have to reheat a portion of it each day)… What do you think?
Hi Nicholas! It works well if you stop at Step 4 and keep the rice and broth separate in the refrigerator. You only need to add the rice at your mealtime and cook it for 10 minutes.
Another idea is If you don’t mind the little overcooked rice (very soft rice), you can make everything ahead of time, including the extra broth. Then add the additional broth to the soaked-up Zosui. This method works well too.
We hope this is helpful.🙂
I have ALWAYS loved zosui but was so intimidated by the idea of making it. Thanks to fortuitously stumbling across your your site, I am finding so many wonderful recipes I can now successfully make – the salmon in foil blew me away! Living in Japan and not being more fluent causes some gaps in picking up recipes and dishes outside of major cities and urban areas. My family of four feasted on this recipe tonight which was a real save after overeating sushi for lunch. Thank you so much!
Hi Alyssa! Thank you very much for trying Nami’s recipes and for your kind feedback!
We are so happy to hear our site helps cook many Japanese recipes, and you and your family enjoy the dishes!🥰