A classic Japanese side dish, Hijiki Seaweed Salad features a type of wild sea vegetable that‘s packed with nutrients. Simmered with edamame and deep-fried tofu strips in a savory-sweet broth, this dish is full of flavor and perfect for meal prep. {Vegan Adaptable}

A ceramic dish containing Hijiki Seaweed Salad.

If you’re looking to include more sea vegetables into your diet, you’ll want to give hijiki a try. Resembling dried tea leaves but longer, hijiki is a type of wild sea vegetable that grows on rocky coastlines around Japan, Korea, and China. It has a sweet, clean taste and mushroom-like quality.

In Japan, we often enjoy it as hijiki no nimono (ひじきの煮物), which translates to “simmered hijiki.” It is technically a cooked dish, but you’ll find it called Hijiki Seaweed Salad at Japanese restaurants in the US.

What is Hijiki Seaweed?

Dried Hijiki Seaweed

Hijiki seaweed is naturally green or brown in color when it’s hand-harvested by fishermen and divers in the wild. Before it’s packaged, hijiki is boiled and then dried, and this process turns hijiki black. You will need to rehydrate it by soaking it in the water prior to cooking.

Like other edible sea vegetables, hijiki is known for its dietary fiber and essential minerals like iron, calcium, and magnesium. After it’s cooked, it has a pleasant crunch and chewy bite. The taste is more earthy rather than oceany. The Japanese have been enjoying this traditional food as a part of a balanced diet for centuries.

Why You’ll Love This Recipe

  • Great textures and flavors: It’s savory, sweet, and pleasantly crunchy
  • Versatile: Serve this side dish in a Japanese dinner, lunch menu set, or bento box
  • Meal-prep and freezer friendly: Make a big batch to enjoy throughout the week! It keeps in the fridge for 3–4 days or in the freezer for up to a month
  • Packed with nutrients: Full of dietary fiber and minerals

Ingredients for Hijiki Seaweed Salad

You can leave out the optional ingredients, but hijiki salad always includes aburaage and edamame.

How to Make the Best Hijiki Seaweed Salad

There are various ways to prepare hijiki no nimono, but I really love my mom’s version. This is very close to how she cooks the dish.

  1. Soak the hijiki seaweed in plenty of water for 30 minutes. In the meantime, prep the other ingredients.
  2. Sauté the julienned carrots and sliced lotus root. Then, add the rehydrated hijiki, aburaage strips, and konnyaku strips.
  3. Add the broth and seasonings and simmer for about 30 minutes.
  4. Add the edamame and continue to simmer until the sauce cooks down and the ingredients soak up the simmering liquid.
  5. Cool to room temperature so the flavors mingle and settle in. Serve at room temperature.

Cooking Tips

  • Season generously – When a dish is eaten at room temperature, you want to be generous with the seasonings so the flavors come through. Do not cut down on the sugar as we use it to balance the salt and enhance the overall taste.
  • Don’t skip the fried tofu pouch – The sponge-like texture of the aburaage gives great depth, mouthfeel, and flavor to the dish, so don’t skip it.
  • Make a big batch – Simmered hijiki is exactly the kind of dish that Japanese home cooks include in their meal prep. It keeps well and can easily enjoy throughout the week. You can mix it with white steamed rice to make Maze Gohan (Mixed Rice), add on top of soba noodles, or use it to make rice balls.
A ceramic dish containing Hijiki Seaweed Salad.

What to Serve with Hijiki Seaweed Salad

With contrasting textures and a concentrated sweet-savory flavor, Hijiki Seaweed Salad makes a truly unique Japanese dish that highlights the beauty of sea vegetables. I hope you enjoy it.

Try serving Hijiki Seaweed Salad with Grilled Mackerel, Japanese Spinach Salad with Sesame Dressing, White Steamed Rice, (Takikomi Gohan), and Miso Soup for a Japanese-style ichiju sansai meal.

Popular Similar Dishes

A ceramic dish containing Hijiki Seaweed Salad.

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A ceramic dish containing Hijiki Seaweed Salad.

Hijiki Seaweed Salad

4.85 from 40 votes
A classic Japanese side dish, Hijiki Seaweed Salad features a type of wild sea vegetable that‘s packed with nutrients. Simmered with edamame and deep-fried tofu strips in a savory-sweet broth, this dish is full of flavor and perfect for meal prep. {Vegan Adaptable}

Video

Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 4

Ingredients
 
 

For the Seasonings

  • ¼ cup mirin
  • 2 Tbsp sugar (this dish is typically on the sweet side to help preserve it and for better flavor when eaten at room temperature in a bento box; reduce by half, if you‘d like)
  • ¼ cup soy sauce
Japanese Ingredient Substitution: If you want substitutes for Japanese condiments and ingredients, click here.

Instructions
 

  • Gather all the ingredients.
    Hijiki Salad Ingredients
  • Soak ½ cup dried hijiki seaweed in 4 cups water—10 minutes for mehijiki (bud hijiki) or 30 minutes for nagahijiki (stem hijiki). Meanwhile, prepare the other ingredients.
    Hijiki Salad 1
  • Drain to a large fine-mesh sieve and rinse under running water.
    Hijiki Salad 2

To Prepare the Other Ingredients

  • Boil water in a small saucepan and pour it over 2 aburaage (deep-fried tofu pouch). This will remove the excess oil on the aburaage. Squeeze out the liquid. Then, cut in half lengthwise and thinly slice crosswise.
    Hijiki Salad 3
  • Add some water and 3 oz konnyaku (konjac) to a small pot and boil for 3 minutes to remove the odor. This also helps the konnyaku absorb flavors and improves the texture. Then, slice it into small strips (about the same size as the aburaage slices).
    Hijiki Salad 4
  • Cut 3 oz carrot into julienne pieces.
    Hijiki Salad 5
  • Cut ¼ lotus root (renkon) into thin quarter pieces.
    Hijiki Salad 6

To Cook the Hijiki Salad

  • Heat 1 Tbsp neutral oil in a medium pot over medium heat. Add the carrot and lotus root and cook until they are coated with oil.
    Hijiki Salad 7
  • Add the hijiki, then the konnyaku and aburaage. Mix it all together.
    Hijiki Salad 8
  • Add 2 cups dashi (Japanese soup stock) and let it boil.
    Hijiki Salad 9
  • Add all the seasonings: ¼ cup mirin, 2 Tbsp sugar, and ¼ cup soy sauce. Mix well. Cook covered on medium-low heat for 20–30 minutes.
    Hijiki Salad 10
  • Add ⅓ cup shelled edamame.
    Hijiki Salad 11
  • Continue to cook, uncovered, to reduce the sauce until you see the bottom of the pan.
    Hijiki Salad 12

To Serve

  • Serve as a side to a Japanese meal or pack in a bento lunch box. For convenient meal prep, you can divide the Hijiki Salad into a bento portion in silicone cups for freezing.
    Hijiki Seaweed Salad To Serve Step

To Store

  • Store in an airtight container and keep in the refrigerator for up to 3–4 days. You can also freeze it for up to a month.

Nutrition

Calories: 128 kcal · Carbohydrates: 17 g · Protein: 5 g · Fat: 3 g · Saturated Fat: 1 g · Polyunsaturated Fat: 2 g · Monounsaturated Fat: 1 g · Trans Fat: 1 g · Sodium: 520 mg · Potassium: 189 mg · Fiber: 3 g · Sugar: 8 g · Vitamin A: 3560 IU · Vitamin C: 8 mg · Calcium: 84 mg · Iron: 1 mg
Author: Namiko Hirasawa Chen
Course: Side Dish
Cuisine: Japanese
Keyword: seaweed
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4.85 from 40 votes (25 ratings without comment)
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Made your hijiki salad few days ago.
Really good recipe! ありがとうございます!!

I was so surprised to find out that my very fussy eater 4 year old son loves hijiki! He leaves the rest of the salad ingredients on his plate but loves to eat the hijiki part, especially when it is mixed with some rice.

Hi Nami! I’m so glad you shared the Hijiki Salad recipe! I loved it in Japan and was so happy to find it. My whole family loves it and I can’t keep it in the house because they eat it so quickly. Yesterday I made ume shiso pasta. Today I’m going to make Tofu pizza and Hijiki salad. Thank you for making it easy for me! Katie Hughes

Dear Nami,

I’ve just ordered Hijiki in the internet since it’s nowhere to be found! When I was in Japan I always ordered a portion of this salad at Sukiya. Of course then I didn’t know neither how it was called nor what the ingredients were… Thank god I found your recipe!!!

Quick question… How do you cook edamame exactly? Here we can only buy them frozen.

And how much hijiki are you allowed to eat per day? I heard somewhere that since it contains a lot of iodine it you shouldn’t overdo it…

Thank you!!

Hi Nami,

THANK YOU SO MUCH FOR THE RECIPE!!! I made it today and half of it is already gone!! 🙂

Simply D-E-L-I-C-I-O-U-S!!!

I’ve noticed that a lot of your recipes have sugar added to them. Would it affect the taste much if I omitted it?

Nevermind, I just saw Susy’s response!

This recipe looks great except for the addition of white sugar. I’ve soaked my hijiki in water and then simmered it down in apple cider (juice, not vinegar) and it gives it a delicate sweetness without the sugar burn.

Thank you for your beautiful and useful website. I used your hijiki no nimono and inarizushi recipes to share my love of Japanese food with my friends here in Southern Germany, where i am living right now. I had just returned from a visit to Tokyo to visit my former exchange students, and the tastes were just like my “daughters” made for me during my visit. Everyone loved the food, and I have translated your recipes into German, with a link to your website so they can enjoy the pictures, plus directions to the little Japanese grocery store that I visit in Munich.

I had this dish in Japan for breakfast. I loved it. Don’t be afraid to post, this is what makes your blog different. Keep posting traditional Japanese dishes.

I love Hijiki! I love this dish too much, I can eat it with a huge bowl of rice!!
If there were only Hijiki and cooked rice in the house, I will be happy to eat them for dinner or lunch…or breakfast!
I’d like to make this soon, but I have to make it without Konnyaku & Renkon…since I can’t buy them around here 🙁

Thanks for the great recipe 🙂

Looks delicious! I found Hijiki in a Japanese shop in Amsterdam. I used it like wake me. That was not a great succes, but now I understand, it has to be boiled much longer!
Question: with what dishes is this nice to combine? I like al the different small Japanese dishes, but if you want to make a meal out of it, it seems like I have to be in the kitchen all day:-)

Hi Nami,

thanks for sharing your Hijiki recipe on your blog. I got to know hijiki Seaweed from a Japanese friend. After trying hijiki, I liked it a lot. However, I have read on the internet that hijiki contains certain a high level of Arsenic. And I really looked up on the internet. Unfortunately, some food agencies in UK even advice consumers do NOT eat Hijiki seaweed due to this reason. Please see the link i attach. I also told my Japanese friend about what I read. After looking on the internet, he said that he agrees with me. So I am actually not quite sure about whether it is okay to eat Hijiki or not.

http://www.ausfoodnews.com.au/2010/08/13/consumers-advised-not-to-eat-hijiki-seaweed.html

I just discovered your site and I love it! I returned yesterday from a trip to Japan. The first half of my trip was spent with a Japanese vegetarian man. We ate so many wonderful things. Your site is a great resource. Thank you for sharing so many recipes.

I love hijiki salad and have been meaning to make it for ages! Usually I buy it from Atari-ya in London but now I will try your recipe! Thanks very much (:

Hello Nami,
I’m glad you share this hijiki salad with us. My Japanese friend once made this for me when I was pregnant and she said this is her all time super food. I then was thinking how to made this salad but didn’t manage because I didn’t know that the hijiki has to be cooked…….;)
Thanks a lot Nami!

I love hijiki salad!! When I went to school in japan this was one of my favorite dishes!!!!

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