This authentic kimjang-style kimchi features a signature gochugaru blooming technique that deepens color and flavor while traditional fermentation creates a spicy, umami-rich condiment that improves over weeks in the refrigerator.
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Begin by making a small slit at the base of the white stem of each napa cabbage head with a knife. Gently pull the cabbage apart into halves using your hands. Afterward, make another slit in the center of the stem of each half to loosen it further. This helps the salt penetrate evenly.
In a large bowl, combine 1 cup of Korean coarse sea salt with 10 cups of water, stirring until fully dissolved to create your brine. Thoroughly submerge each cabbage half in the brine, ensuring the solution coats all the leaves and crevices. Remove the cabbage from the saltwater and sprinkle coarse sea salt directly onto the thick white stems, as they take longer to soften than the leafy parts. Add an extra handful of salt on top of the cabbage for even seasoning.
Place the salted cabbage in a large plastic bag and seal it tightly to remove excess air. Allow the cabbage to wilt for 3–4 hours, flipping the bag occasionally for even brining. The cabbage should become noticeably pliable and translucent, indicating thorough absorption of salt and consistent brining.
Rinse the cabbage thoroughly with cold water a few times to remove excess salt. Taste a small piece of the stem; it should be pleasantly salty, not overwhelmingly so. Place it in a strainer and gently press to squeeze out excess water. Allow the cabbage to drain for 1 hour while you prepare the kimchi stock and seasoning. This drainage is critical for achieving the right texture.
This flavorful stock forms the base of your kimchi. In a pot, combine dried pollock fish head (or dried baby shrimps), dried large anchovies, dried sea kelp, 4 oz (100 g) Korean radish, sweet apple, 1/2 Asian leek or onion, and 10 cups (2.4 L) water. Bring this mixture to a boil, then immediately remove the dried sea kelp to avoid any bitterness in the stock. Reduce the heat and let it simmer gently for 30 minutes, allowing the flavors to meld. Strain the stock, keeping the fragrant liquid, and discard the solids.
Next, prepare the rice flour paste. In a separate saucepan, whisk 2 tablespoons of sweet rice flour (chapssal-garu) into 1 cup (240 ml) of the prepared kimchi stock. Cook over medium heat, stirring continuously with a whisk, until it thickens into a smooth, syrupy paste, similar to a thin gravy. Remove it from heat and allow it to cool completely before using. This paste acts as a binder and provides food for the fermentation.
This is where the magic happens and our unique twist comes in. In a blender, combine the aromatic ingredients: 1/2 onion, 1/2 Korean pear (or bosc pear), 20 cloves garlic, 1/2 oz (15 g) fresh ginger, and 4 tablespoons (40 g) Korean salted shrimp. Blend until smooth, adding a small amount of kimchi stock if needed to achieve a perfectly smooth consistency.
In a large mixing bowl, toss the thin radish strips (1 lb / 450 g) with 2 tablespoons of Korean chili flakes (gochugaru) until evenly coated. Let them rest for a few minutes to soften and absorb the initial vibrant color.
Now for our unique twist: BEFORE adding the main quantity of gochugaru to the large mixing bowl, bloom 1.5 cups (187.5g) of the remaining Korean chili flakes (gochugaru) in 1/2 cup (120ml) of warm kimchi stock. Let it sit for 10-15 minutes to rehydrate and deepen its color and flavor. You will see it transform into a rich, thick paste.
Then, add this bloomed gochugaru paste along with the remaining 6 tablespoons of gochugaru, the thinly sliced Asian leek, chopped green onion, chopped mustard green, 1 cup (240 ml) rice flour paste, 1/3 cup (80 ml) Korean anchovy sauce, 2 tablespoons (30 ml) Korean plum extract (maeshil cheong), and 1 tablespoon (12 g) sugar to the radish mixture. Mix thoroughly until it forms a thick, cohesive, and incredibly vibrant red paste. The bloomed gochugaru will ensure an exceptionally rich color and enhanced flavor profile.
With your hands protected by gloves, it is time to apply the seasoning. Hold one cabbage half in one hand and gently separate the outer 1–2 leaves with the other. Spread the seasoning paste evenly between each leaf, using just enough to coat them without tearing the delicate leaves. Work your way from the outer leaves to the inner, ensuring every crevice and surface is covered. The paste should adhere beautifully, thanks to the rice flour paste.
Once the seasoning paste is applied to all the leaves, fold them inward and wrap the cabbage with the outermost leaf to create a neat, compact bundle. This technique helps keep the kimchi organized and encourages even fermentation. Repeat with the remaining cabbage halves and place the kimchi bundles snugly into your chosen kimchi container.
Rinse the mixing bowl with 1 cup (or more) of the remaining kimchi stock (or water) to gather any leftover seasoning. Pour this flavorful liquid over the kimchi bundles in the container, then seal the lid tightly. This liquid will transform into a rich kimchi brine as it ferments, protecting your kimchi.
To ensure freshness and support long-term storage, it is important to keep air out of the container. Line the container with a food-grade plastic bag, tie it tightly, and securely close the lid. This creates an anaerobic environment essential for lactic acid bacteria to thrive.
Leave the kimchi at room temperature for 1–2 days, depending on the ambient temperature. An ideal room temperature for initial fermentation is between 65-70°F (18-21°C). This temperature range promotes the rapid development of beneficial lactic acid bacteria, kickstarting the fermentation process. You might notice a slight bubbling or a sour smell developing. Taste a small piece after 24 hours; if it is starting to get tangy, it is ready for the next step.
Then, transfer it to a refrigerator or a dedicated kimchi fridge. While the kimchi can be enjoyed after this initial room temperature fermentation, letting it ferment for 1 week in the refrigerator will deepen and enhance its flavor significantly. Kimjang kimchi will stay delicious for several weeks to months in the fridge. Over time, it will continue to ferment, becoming tangier and more robust in flavor, perfect for cooking.
Store sealed kimchi in the refrigerator in an airtight container with a food-grade plastic bag liner; it improves for 1 week and remains delicious for several weeks to months, developing deeper tanginess over time.
blender · large mixing bowl · food-grade plastic bag · kimchi container or airtight jar · kitchen gloves · strainer
Plan 3–4 hours for brining and prep, then 1–2 days initial room temperature fermentation at 65–70°F (18–21°C), followed by 1 week refrigeration for optimal flavor development.
Blooming involves rehydrating 1.5 cups gochugaru in 0.5 cup warm kimchi stock for 10–15 minutes before mixing into the seasoning paste, which deepens color and intensifies flavor compared to dry chili flakes.
Daikon radish works for Korean radish; Bosc pear is already listed as an option for sweetness and fermentation balance. Avoid substituting seafood components (anchovies, shrimp, pollock) as they are essential for the umami foundation.
Properly stored in an airtight container with the plastic bag seal, kimchi stays delicious for several weeks to months in the refrigerator, continuing to ferment and develop tangier, more robust flavor over time.
Extend brining time by 1–2 hours, ensuring the plastic bag seals tightly and you flip it occasionally. The white stems should bend easily when ready; they take longer to soften than leafy parts.
