Korean Radish Greens Mussel Soup
Quick answer
Mucheong-honghap-guk is a Korean home-style soup that draws its broth from fresh mussels and its body from doenjang-seasoned dried radish greens.
What makes this special
- Mucheong-honghap-guk draws mineral-rich depth from mussels and seasoned radish greens.
- Mussels opening release natural briny stock with no separate base needed
- Doenjang-coated radish greens reduce raw green smell and deepen the broth
Key ingredients
Core cooking flow
- 1 Remove the beards from 700 g mussels and scrub the shells under cold running water.
- 2 Squeeze 250 g blanched radish greens firmly, then cut them into 6 cm lengths.
- 3 Bring 1.7 liters water to a full boil over high heat.
Mucheong-honghap-guk is a Korean home-style soup that draws its broth from fresh mussels and its body from doenjang-seasoned dried radish greens. The mussels open during simmering and release a briny, mineral-rich liquor that serves as the soup's stock, eliminating the need for a separate anchovy or beef base. Dried radish greens, previously boiled until tender and dressed with doenjang, are added to the mussel broth, where they absorb the seafood flavor while contributing their own earthy, fermented depth. The textural contrast is a quiet pleasure: chewy mussel meat against the fibrous, slightly toothy greens. Garlic and green onion anchor the aromatics, and an optional Cheongyang chili adds a thread of heat that sharpens the overall flavor without overpowering the shellfish. The soup comes together quickly once the greens are pre-prepared, making it a weeknight-friendly dish in coastal regions where mussels are plentiful. Despite its simplicity, the layering of seafood brine and fermented soybean paste gives the broth a surprising complexity that rewards slow, attentive sipping.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Step
Remove the beards from 700 g mussels and scrub the shells under cold running water.
Discard any cracked mussels or ones that stay open, then rinse once more so grit does not cloud the soup.
- 2Season
Squeeze 250 g blanched radish greens firmly, then cut them into 6 cm lengths.
Rub in 1/2 tablespoon doenjang evenly so the greens lose grassy sharpness and are seasoned before they enter the broth.
- 3Control
Bring 1.7 liters water to a full boil over high heat.
Add the mussels, reduce to medium heat, and simmer about 5 minutes, just until most shells open and the broth turns briny.
- 4Control
Skim off the foam floating on the surface so the broth stays clean.
Add the doenjang-seasoned greens and 1 tablespoon minced garlic, then simmer over medium-low heat for 10 minutes until the greens soften further.
- 5Season
Dissolve the remaining 1/2 tablespoon doenjang and add 1 tablespoon soup soy sauce.
Taste the broth before adding more seasoning, because mussels release saltiness as they cook and the soup can become too salty quickly.
- 6Finish
Add the sliced cheongyang chili and green onion, then boil for only 2 more minutes to lift the aroma.
Turn off the heat before the mussel meat toughens, and serve the soup very hot.
After the steps
Pick a recipe that fits this dish.
Continue with shared ingredients, meal pairings, or a similar method.
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