Make Your Own Seaweed Kimchi

Make Your Own Seaweed Kimchi: A Nutritious and Delicious Fermented Condiment

Seaweed kimchi is a popular Traditional Korean side dish that is both healthy and delicious. This fermented condiment made from napa cabbage, seaweed, and spices provides a tasty umami flavor along with great nutritional benefits. The lacto-fermentation process boosts the levels of probiotics, making this easy homemade kimchi recipe an excellent addition to your diet.

The Unique Flavor and Nutrition of Seaweed Kimchi

Kimchi is a staple condiment in Korean cuisine, served alongside almost every meal. This spicy and sour fermented cabbage is commonly made with napa cabbage, radish, green onions, garlic, ginger, and gochugaru (Korean red chili pepper flakes). Unlike regular kimchi, seaweed kimchi utilizes dried seaweed varieties like kombu, wakame, sea palm, and nori.

The addition of seaweed gives the kimchi a delicious umami depth while also boosting its nutritional value. Seaweed contains high levels of vitamins, minerals, antioxidants, and omega-3 fatty acids. When paired with the probiotic benefits of the fermentation process, seaweed kimchi becomes a true superfood!

This versatile condiment can be enjoyed in various dishes beyond Traditional Korean fare. Seaweed kimchi makes an excellent topping for bowls, pierogies, sandwiches, grilled meats, and more. The unique flavors and health perks make this fermented recipe worth trying at home.

Choosing the Best Seaweed for Your Kimchi

To make your own seaweed kimchi, you first need to procure some high-quality dried seaweed. Those living near coastal regions can harvest and dry seaweed varieties like kombu, nori, and wakame. For landlocked individuals, Asian grocery stores and online retailers offer a wide selection of dried seaweeds.

Choosing the Best Seaweed for Your Kimchi

Some of the best options for a flavorful kimchi include:

  • Kombu – This kelp adds glutamic acid that increases umami.
  • Wakame – A nutritious seaweed that maintains texture after fermenting.
  • Nori – Most familiar as sushi wrap, nori lends a subtle ocean flavor.
  • Sea Palm – Also called hijiki, this black seaweed has a mild taste.
  • Bladderwrack – Known as miyeok in Korea, it gives a crunchy texture.

Mix and match a variety of seaweeds to create complexity. Aim for bolder kelps like kombu balanced with more delicate nori and wakame.

Preparing the Vegetables and Brine

In addition to the seaweed, you will need napa cabbage, salt, and flavorful vegetables like radish, scallions, and ginger.

Start by chopping one head of napa cabbage into 1-2 inch pieces. Next, coarsely cut the dried seaweed so it can hydrate and expand during brining.

In a large bowl, combine the cabbage and chopped seaweed. Top with grated or julienned daikon radish, scallions, and other vegetables if desired.

Next, sprinkle 1-3 tablespoons of salt over the mixture. Using your hands, massage and squeeze the salt into the cabbage and seaweed to start drawing out the moisture.

Preparing the Vegetables and Brine

Once the ingredients are well coated in salt, pack them into a jar or other fermentation vessel. Pour over enough water to submerge everything. Place a weight like a plate on top to keep the vegetables down.

Let the cabbage and seaweed brine for several hours or up to one full day. This allows the salt to pull out the moisture needed for the lacto-fermentation process.

Making the Spice Paste That Flavors Your Kimchi

Making the Spice Paste That Flavors Your Kimchi

While the vegetables are brining, you can prepare the spice paste that will flavor the kimchi. This paste infuses the fermenting kimchi with spicy, pungent, and tangy flavors.

In a small bowl, combine the following:

  • 2-3 cloves of minced garlic
  • 1 tablespoon grated ginger
  • 3 tablespoons gochugaru (Korean red chili flakes)

For extra umami flavor, you can also add:

  • Fish sauce or chopped salted shrimp
  • 2-3 chopped anchovy fillets

Mix the ingredients together thoroughly to form a thick paste. Adjust quantities to your taste – add more garlic and chili for a spicier kimchi or less for milder flavor.

Mix and Store for the Fermentation Process


Once the vegetables have brined for the allotted time, drain off any excess liquid. Thoroughly mix in the spice paste until all the cabbage and seaweed are well coated.

Transfer the spiced kimchi to a sterilized glass jar or other airtight container. Make sure it is packed down with minimal air pockets. Place in a cool area away from direct sunlight.

Now the waiting begins! Allow your kimchi to ferment for 1-4 weeks depending on your climate and taste preferences. Warmer temperatures speed up fermentation, while cooler weather causes it to proceed more slowly.

Taste the kimchi regularly as it ages. The flavor will evolve from fresh and chili-hot to tangy, funky, and sour. Once it reaches your desired level of sourness and bubbles with effervescence, move the kimchi to cold storage. At this point the fermentation will slow considerably but the probiotic cultures will remain active.

Enjoying Your Seaweed Kimchi Creation

Enjoying Your Seaweed Kimchi Creation

That’s it – with some patience you now have a nutritious homemade seaweed kimchi! This versatile fermented condiment can serve as a side dish, sandwich topping, burger topping, or digestion-boosting snack.

Some tasty ways to use your seaweed kimchi include:

  • Serving alongside grilled meats like bulgogi beef or Korean BBQ.
  • Adding crunchy texture and kick to sandwiches.
  • Mixing into rice along with vegetables, egg, and meat for bibimbap.
  • Serving as a condiment for dumplings, pierogies, and potstickers.
  • Topping nachos, tacos, pizza, and other snacks.
  • Mixing into mashed avocado for a toast or bagel topper.

With a little creativity, the possibilities are endless! Adjust the salt, spices, and fermentation time to suit your personal tastes. Making your own seaweed kimchi is easy and rewarding.


Seaweed kimchi is a Traditional Korean specialty that is loaded with nutrition and delicious umami flavor. By fermenting nutritious sea vegetables with napa cabbage and gochugaru, you can make a tasty probiotic-rich condiment at home. Allowing time for proper fermentation results in complex sour notes that balance with savory seaweed essence. With a simple recipe and some patience, anyone can create refreshing and healthy seaweed kimchi.