Korean Maesaengi Oyster Kalguksu
Quick answer
- Total time
- 38 min
- Level
- Medium
- Servings
- 2 servings
- Ingredients
- 8
About this dish
Maesaengi oyster kalguksu is a Korean seasonal noodle soup built around maesaengi, a hair-thin dark green seaweed harvested along Korea's southern coast in winter, and freshly shucked oysters.
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The broth is anchovy-kelp stock seasoned with soup soy sauce, minced garlic, and salt. Timing controls the outcome more than any other variable in this dish. Knife-cut noodles go in first and cook for four to five minutes until nearly done. Oysters follow and need no more than two minutes of heat because the proteins tighten quickly and turn rubbery if pushed further. Maesaengi goes in last, needing under a minute to warm through while keeping its vivid green color and the dense marine aroma that defines the soup. Sliced scallion finishes the bowl. Both maesaengi and oysters are at their fullest flavor between December and February, and making this dish outside that window noticeably diminishes the broth.
Ingredients
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Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Step
Place 80 g maesaengi seaweed in cold water and loosen it gently with your fingertips.
Swish it lightly, lift it into a sieve, drain well, and separate any clumps without rubbing hard.
- 2Season
Rinse 180 g shucked oysters briefly in lightly salted water to remove grit and shell fragments.
Do not knead or wash them repeatedly, then drain them in a sieve so they stay plump.
- 3Control
Pour 1000 ml anchovy-kelp stock into a pot and bring it to a boil over high heat.
Lower to medium, add 1 tablespoon minced garlic and 1 tablespoon soup soy sauce, and season the base before the noodles go in.
- 4Control
Add 280 g knife-cut noodles and stir right away so they do not stick together.
Cook over medium heat for 4-5 minutes, until the edges look slightly translucent and the centers still feel just firm.
- 5Control
Add the oysters, and when the broth starts bubbling again, reduce the heat to medium-low.
Cook for only about 2 minutes, stopping when the oyster edges curl but the bodies still look plump.
- 6Finish
Add the maesaengi and loosen it gently with chopsticks, warming it for under 1 minute so the color stays bright green.
Adjust with 1/2 teaspoon salt, top with 30 g sliced scallion, and serve immediately.
Practical Cooking Checks
The cues that matter most while cooking.
- Key technique
- Hair-thin green seaweed and fresh oysters create a mineral-rich broth for this kalguksu.
- Finish cue
- Cook over medium heat for 4-5 minutes, until the edges look slightly translucent and the centers still feel just firm.
- Avoid this
- Do not overcook maesaengi; under 1 minute keeps its aroma.
Cooking decision evidence
Calculated Charim data and applicable official cooking and food safety guidance.
This recipe
38min, 8 ingredients
Category median
35min, 9 ingredients
Based on 233 recipes
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