Korean Seafood Japchae (Glass Noodles with Shrimp, Squid and Vegetables)
Quick answer
Haemul-japchae is a seafood version of the Korean glass noodle stir-fry, featuring shrimp, squid, spinach, carrots, and onions tossed together in soy sauce and sesame oil.
What makes this special
- Shrimp and squid mix oceanic umami into sweet potato starch noodles and crisp vegetables.
- Shrimp and squid replace meat, weaving oceanic umami into the noodles
- Scored squid curls in heat creating visual pattern and textural variety
Key ingredients
Core cooking flow
- 1 Soak 150 g glass noodles until pliable, then boil them just until chewy and drain well.
- 2 Pat 150 g shrimp dry, and cut 100 g squid into bite-size pieces, scoring the surface lightly if possible.
- 3 Cook 100 g spinach briefly, just until wilted, then squeeze out the water.
Haemul-japchae is a seafood version of the Korean glass noodle stir-fry, featuring shrimp, squid, spinach, carrots, and onions tossed together in soy sauce and sesame oil. Replacing meat with seafood allows the briny, mineral depth of the ocean to soak into the chewy sweet potato noodles, while the vegetables' natural sweetness keeps the overall flavor light and balanced. The noodles absorb the seasoning and take on a springy, glossy character, and the shrimp and squid contribute two distinct textures: a firm, bouncy snap from the shrimp and a satisfying chew from the squid. Scoring the squid before cooking causes it to curl and develop a pattern on the surface as it hits the heat, improving both texture and presentation. Seafood must be cooked over high heat and quickly to stay tender rather than rubbery, and the noodles should be soaked thoroughly beforehand so they absorb the seasoning evenly during the stir-fry. The dish often replaces beef japchae on holiday and celebration tables, and adding mussels or scallops deepens the broth-like quality of the finished dish.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Season
Soak 150 g glass noodles until pliable, then boil them just until chewy and drain well.
While still warm, toss with 1 tsp soy sauce and a little sesame oil so the strands do not stick together.
- 2Prep
Pat 150 g shrimp dry, and cut 100 g squid into bite-size pieces, scoring the surface lightly if possible.
Remove excess moisture thoroughly because wet seafood steams in the pan instead of searing quickly.
- 3Control
Cook 100 g spinach briefly, just until wilted, then squeeze out the water.
Slice 1 carrot and 1 onion thinly, and stir-fry over medium heat until softened and lightly sweet, keeping the vegetables separate if the pan is crowded.
- 4Control
Heat the pan over high heat, then add the shrimp and squid and stir-fry for about 1 minute.
As soon as the shrimp turn pink and the squid curls, remove them so they stay tender.
- 5Control
Return the noodles to the pan, add the remaining 2 tsp soy sauce and 2 tsp sugar, and stir-fry over medium heat.
When the noodles look glossy and seasoned through, fold in the vegetables and seafood.
- 6Finish
Lower the heat and drizzle in the remaining sesame oil, tossing everything gently so the seafood does not break.
If the noodles feel dry, add only a splash of water, then serve while warm and glossy.
After the steps
Pick a recipe that fits this dish.
Continue with shared ingredients, meal pairings, or a similar method.
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Kimchi japchae is a variation on classic Korean glass noodle stir-fry that replaces the usual assortment of vegetables with well-fermented aged kimchi, giving the dish a bold tangy heat that the original does not have. Glass noodles are boiled, rinsed in cold water to stop the cooking, and pre-seasoned with soy sauce so they absorb flavor before hitting the pan. Pork shoulder goes in first to render its fat and build a savory base in the wok, then the kimchi -- thoroughly squeezed dry -- is added and stir-fried until the sourness concentrates and caramelizes slightly. Removing the kimchi's moisture is a non-negotiable step: excess liquid steams the noodles rather than frying them, causing the noodles to swell and the overall seasoning to turn watery and flat. Sliced onion goes in with the kimchi to contribute a natural sweetness that softens the acidity. Once the aromatics are cooked down, the noodles are tossed in with additional soy sauce and a small amount of sugar if the kimchi is especially sour. The pan comes off the heat before sesame oil is added to preserve its fragrance, and whole sesame seeds finish the dish. The combination of the noodles' chewy elasticity and the kimchi's pungent, fermented character produces a version of japchae that tastes fundamentally different from the traditional preparation.
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Korean Glass Noodle Stir-fry
Japchae is a signature Korean dish of glass noodles stir-fried with beef, spinach, carrots, onions, and shiitake mushrooms in soy sauce and sesame oil. The noodles are made from sweet potato starch and turn translucent as they cook, absorbing the seasoning to become glossy and springy rather than starchy or heavy. The defining technique is cooking each component separately before combining them at the end. Spinach softens quickly and needs only a brief wilt; carrots are stir-fried to keep a slight bite; shiitake mushrooms are cooked until pleasantly chewy; and beef is marinated in soy sauce, sesame oil, sugar, garlic, and pepper before being stir-fried so it stays tender without any gamey edge. Tossing the noodles in soy sauce and sesame oil right after boiling prevents them from clumping together. When everything is brought together at the end, each ingredient keeps its individual texture while the seasoning unifies the dish. Japchae appears at virtually every Korean celebration including Chuseok, Lunar New Year, birthdays, and wedding feasts, and a large batch keeps its quality well into the following day.