Korean Freshwater Snail Soup

Quick answer

Total time: 65 min
Level: Medium
Servings: 4 servings
Ingredients: 7

About this dish

Olgaengi-guk is a defining dish of the Chungcheong region, a rustic and deeply flavored Korean soup made with freshwater snails called daseugi and mallow leaves simmered in a doenjang-based broth.

Pressing the soybean paste through a fine strainer before adding it to the pot keeps the broth smooth and free of lumps, which gives the finished soup a cleaner appearance than versions made by simply dropping a spoonful into the water. Mallow leaves go in first and simmer for eight minutes, gradually releasing a soft, vegetal flavor that works its way through every corner of the broth. The snail meat follows, adding a delicate freshwater umami that is noticeably lighter and cleaner than the brine-forward taste of ocean shellfish. Ground perilla seed stirred in at the very end coats the liquid in a nutty richness and acts as a binding element that pulls the doenjang, the snail, and the mallow into a single coherent whole. The result is a bowl that is simple in its list of ingredients but quietly complex in flavor, a soup that reflects the rivers, fields, and fermentation culture of central Korea. It rarely appears on menus outside its home territory, making it one of those genuinely regional dishes that most people encounter only when they find themselves in Chungcheong.

Ingredients (4 servings)

Ingredient	Amount	Unit
freshwater snail meat	250	g
mallow leaves	120	g
water	1500	ml
soybean paste	2	tbsp
minced garlic	1	tbsp
green onion	0.5	ea
perilla seed powder	1	tbsp

Instructions

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

6 steps

1

Prep

Trim the tough stems from 120 g mallow leaves and rinse the leaves several times under running water until no grit remains.

Slice 1/2 green onion thinly, then drain 250 g freshwater snail meat in a strainer.
2

Control

Pour 1500 ml water into a pot and bring it to a full boil over high heat.

Set a strainer over the pot, press in 2 tbsp soybean paste with broth, and reduce to medium heat once dissolved.
3

Control

Add the mallow leaves and simmer over medium heat for 8 minutes.

The leaves should soften and sink into the broth, and the liquid should take on a light green tint with a gentle vegetal aroma.
4

Control

Add the drained snail meat and 1 tbsp minced garlic, then simmer for 7 more minutes over medium-low heat.

Keep the bubbles gentle because a hard boil can make the snail meat tough and cloudy the broth.
5

Prep

Mix 1 tablespoon of perilla powder with hot broth first, then add it to the pot.

Stir until smooth and evenly dispersed through the snail and mallow broth.
6

Finish

Add the sliced green onion and let the soup return to a brief boil just before turning off the heat.

Serve it hot as soon as the perilla aroma rises and the broth looks slightly thicker.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique: Olgaengi-guk gathers freshwater snails and mallow leaves in a strained doenjang broth.
Finish cue: Add the sliced green onion and let the soup return to a brief boil just before turning off the heat.
Avoid this: Trim the tough stems from 120 g mallow leaves and rinse the leaves several times under running water until no grit remains.