A classic Japanese side dish, Hijiki Seaweed Salad features a type of wild seaweed that is highly nutritious. It is simmered together with a myriad of vegetables in a savory dashi broth. The result is so full of flavor and perfect for meal prep.
If you’re looking to include more sea vegetables into your diet, you’d want to give hijiki a try. Resembling dried tea leaves but lengthier, hijiki is a type of wild seaweed 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’d find it being called Hijiki Seaweed Salad at Japanese restaurants in the US.
What is Hijiki Seaweed
Hijiki seaweed is naturally green or brown in color when it’s hand-harvested by fishermen and divers in the wild. Before being packaged, it 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. What’s special about hijiki is it has a pleasant crunch and chewy bite after cooking. 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.
Ingredients You’ll Need
- Dried hijiki seaweed – You can look for it at Japanese supermarkets, Asian grocery stores, natural food stores, OR online.
- Aburaage (fried tofu pouch) – You get a lot of flavors from Aburaage.
- Carrots – It adds color and nutrition.
- Edamame – The soybeans provide plant-based protein and a satisfying bite to the simmered salad.
- Lotus root (renkon) – Optional, but it adds a nice texture.
- Konnyaku (konjac) – Optional. A jelly-like plant food that is unique to Japanese cuisine. It’s very low in calories and high in fiber.
- Dashi – You can choose to use homemade dashi or a dashi packet. For vegetarians/vegans, use Vegan Dashi.
- Seasonings – soy sauce, mirin, and sugar
You can leave out the optional ingredients, but Hikiji Salad always includes aburaage and edamame.
How to Make Hijiki Seaweed Salad
There are various ways to prepare Hijiki No Nimono, but I really love my mom’s version, so this is very close to how she cooks the dish.
First, we’ll soak the hijiki seaweed in plenty of water for 30 minutes. While it soaks, we prepare the rest of the ingredients. Once ready, start by sauteeing julienned carrots and lotus roots, followed by the rehydrated hijiki, aburaage (fried tofu pouch), and konnyaku (konjac). Cook the vegetables in dashi broth and season with soy sauce, sugar, and mirin. Let everything simmers together for about 30 minutes. At this point, add in edamame and continue to simmer until the sauce is cooked down.
Once it has soaked up the seasonings, let it cool to room temperature so the flavors have a chance to mingle and settle in. The salad is savory, sweet, and pleasantly crunchy. We would serve the Hijiki No Nimono at room temperature and enjoy it as a side dish to a larger part of a Japanese meal. It is often included in a set meal (like Lunch Menu Set) and a bento box.
Cooking Tips
- Be generous on seasoning – When a dish is eaten at room temperature, you want to be generous with the seasonings so the flavors can 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 aburaage (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 – The 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), or top it over soba noodles, or use it to make rice balls.
Itadakimasu!
With contrasting texture 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
- Simmered Kabocha Squash
- Simmered Taro
- Simmered Koyadofu
- Simmered Bamboo Shoots
- Simmered Kiriboshi Daikon
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Hijiki Seaweed Salad
Video
Ingredients
- ½ cup dried hijiki seaweed (1 oz; increases tenfold after rehydration)
- 4 cups water (for soaking)
- 2 aburaage (deep-fried tofu pouch) (1.4 oz, 40 g; you can substitute it with crispy fried tofu cubes from an Asian grocery store, but blanch them first to remove excess oil)
- 3 oz konnyaku (konjac) (⅓ konnyaku; optional)
- 3 oz carrot (½–1 carrot)
- ¼ lotus root (renkon) (1.3 oz, 37 g; pre-boiled; optional)
- 1 Tbsp neutral oil
- 2 cups dashi (Japanese soup stock) (for vegan/vegetarian, make Vegan Dashi)
- ⅓ cup shelled edamame (2 oz, 60 g; cooked; optional)
Instructions
- Gather all the ingredients.
- Soak ½ cup dried hijiki seaweed in 4 cups water for 30 minutes.
- Drain to a large fine sieve and wash under running water.
- 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. Cut in half lengthwise and slice thinly.
- Add some water and 3 oz konnyaku (konjac) to a small pot and boil for 3 minutes to remove the smell. It also makes the konnyaku absorb flavors more and improves the texture.
- Cut 3 oz carrot into julienne pieces.
- Cut ¼ lotus root (renkon) into thin pieces.
- 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.
- Add the hijiki, then the konnyaku and aburaage. Mix it all together.
- Add 2 cups dashi (Japanese soup stock) and let it boil.
- 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.
- Add ⅓ cup shelled edamame.
- Continue to cook uncovered to reduce the sauce until you see the bottom of the pan.
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.
This is delicious. I used to love hijikidon at a restaurant in the East Village (NYC) called Dojo, where a lot of students and folks in the arts would eat for a bargain – it’s long gone now. Your recipe turned out great for me.
It did take a long while to simmer down to “seeing the bottom of the pan” but it was worth the wait. I ultimately don’t regret adding 2 cups of dashi (based on another commenter below) but the long-ish simmer time was a bit of a surprise. Extra patience was required.
My only note would be to add the edamame later, when it’s getting closer to simmered down, not at the beginning when you add the seasonings. That gives it long enough for the edamame to be heated/cooked into the dish, but not so long that they lose their color.
Hi Marlene, Thank you so much for trying Nami’s recipe and for your feedback!
Regarding 2 cups of dashi, You can reduce it to 1 cup as long as the ingredients are well submerged to simmer. 🙂
We hope this helps on your next try.
If people are planning on storing it in the freezer, I assume the best way to serve is to thaw it in the fridge and serve as is?
Hi スティブン, Thank you for trying Nami’s recipe!
Yes, you can defrost it in the fridge or microwave it.
We hope this helps!
なおみさん、ありがとう！
Do you or Nami have a suggested freezer life for the Hijiki Seaweed Salad? I would imagine a minimum of a month. What have been your guys’ experiences with freezing?
スティブン、どういたしまして！
They can be frozen for up to one month, but for the best flavor, we recommend enjoying them as soon as possible.
We hope this was helpful!
Can we use Arame seaweed instead of Hijiki? I could not find hijiki in my local Japanese store
Hi Amelia, Thank you for trying Nami’s recipe!
Sure, you can use Arame instead. However, the soaking time in the water will be much shorter (about 10 minutes) and the texture will be harder than Hijiki.
We hope you like it.