Korean Sea Mustard Soybean Soup
Soups Easy

Korean Sea Mustard Soybean Soup

Quick answer

Total time
28 min
Level
Easy
Servings
2 servings
Ingredients
8

About this dish

Miyeok-doenjang-guk merges two foundations of Korean home cooking, seaweed soup and fermented soybean paste soup, into a single bowl that is earthier and more savory than either alone.

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Dried sea mustard is soaked, drained, and stir-fried briefly in sesame oil to develop a silky texture, then doenjang is dissolved directly into the pot rather than added at the end, which gives the fermented paste time to mellow and integrate with the seaweed's oceanic character. The result is something deeper and more complex than standard beef miyeok-guk, with a slightly funky, umami-saturated broth that reads as distinctly Korean even without meat. Anchovy-kelp stock used as the base amplifies the depth of the umami even further, while garlic and soup soy sauce keep the seasoning anchored. Because the protein and richness come from doenjang rather than beef, the soup leans naturally toward vegetarian territory and pairs well with a cube of soft tofu for added body. The broth thickens slightly from dissolved paste, which makes it cling to rice in a way that clear broths cannot match. Doenjang varies significantly in saltiness from brand to brand, so the final seasoning with soy sauce should be added gradually and tasted throughout.

Ingredients

servings
IngredientAmountUnit
water800 mlmlShop
minced garlic tbsptbspShop
soup soy sauce0.8 tbsptbspShop
firm tofu120 ggShop
sesame oil1 tsptspShop
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Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

6 steps
  1. 1
    Prep

    Soak 12 g dried sea mustard in cold water for 10 minutes, then rinse it two or three times.

    Squeeze out the water firmly and cut any long strands into pieces that are easy to eat.

  2. 2
    Control

    Warm a pot over medium heat, then add 1 tsp sesame oil and the sea mustard.

    Stir-fry for about 1 minute, just until the seaweed looks glossy and the raw ocean smell softens.

  3. 3
    Heat

    Pour in 800 ml water and lower the heat to medium-low once it starts to boil.

    Dissolve 1.5 tbsp doenjang through a strainer so the broth stays even and no paste lumps remain.

  4. 4
    Control

    When the broth returns to a simmer, add 0.7 tbsp minced garlic and cook for 3 minutes.

    Skim off heavy foam if it gathers on top so the soup tastes cleaner.

  5. 5
    Control

    Cut 120 g firm tofu into bite-size cubes and add it to the pot, then simmer for 5 more minutes.

    Avoid vigorous stirring because the tofu can break, and gently shake the pot to settle it.

  6. 6
    Finish

    Add 0.8 tbsp soup soy sauce gradually while tasting, since doenjang saltiness varies.

    Add 20 g green onion, simmer just 1 minute more, then turn off the heat and serve hot.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique
Sautéing seaweed in sesame oil cuts fishiness before the doenjang goes in.
Finish cue
Stir-fry for about 1 minute, just until the seaweed looks glossy and the raw ocean smell softens.
Avoid this
Avoid vigorous stirring because the tofu can break, and gently shake the pot to settle it.

Cooking decision evidence

Calculated Charim data and applicable official cooking and food safety guidance.

This recipe

28min, 8 ingredients

Category median

45min, 8 ingredients

Based on 310 recipes

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Tips

Pre-sautéing sea mustard deepens umami.
Adjust soup soy sauce at the end based on doenjang saltiness.

Estimated nutrition (per serving)

Calories
146
kcal
Protein
10
g
Carbs
8
g
Fat
8
g