Soups & Stews · Season 11 · Season of Summer IV

Oi-naengguk

Oi-naengguk (Chilled Cucumber Seaweed Soup) · 오이미역냉국

Difficulty: Easy
Time to plan: About 15 min depending on preparation
Serves: 4 servings
Recipe: 4 steps
Listed places: 2

Decision notes · editorial comparison of references and preparation plans

Can cucumber cold soup automatically become noodle broth?

This version serves cucumber, water, ice and seasoning as a side soup, without seaweed. Noodles change volume and dilution, so it is not automatically a noodle-bowl broth.

Check before ordering or preparing: Check measured water and ice, vinegar, soy and kosher salt, and cold storage.

Cucumber-led formula with measured water and ice. This page omits optional tomato/chili and explains dilution. Maangchi · Oi-naengguk · 2026-10-24

Alternative to compare: Kongguksu (Chilled Soy Milk Noodles)Make an order card Prepare this version

Food notes and context

Oi-naengguk serves cucumber in tangy chilled liquid. This selects Maangchi’s cucumber-only formula and measures water and ice together. Adding dried seaweed requires a different hydration and dilution basis.

Allow for dilution from melting ice when measuring liquid and seasoning. Vinegar is not a substitute for refrigeration; slice cucumber into manageable pieces and assemble for serving.

Cook this version

Images are AI-generated illustrations, not records of a kitchen test. Follow the written ingredients and steps. Ingredients and substitutions guide

Times and yields are planning values for this editorial preparation, not measured kitchen results. Substitutions can change flavor, texture and cooking needs. Read product directions and our measurement and doneness guide together.

Prep: Cut cucumber and scallion
Cook: No cooking
Wait: Have cold water and ice ready
Ready in: About 15 min depending on preparation

The selected formula is cucumber soup without dried seaweed. Five-minute completion is not promised.

Ingredients (4 servings)

Ingredient	Amount	Substitute abroad
Cucumber	About 340g
Minced garlic and scallion	1 clove; 1 scallion
Kosher salt and soy sauce	1.5 tsp; 1 tsp
Sugar and vinegar	2 tsp; 4 tsp
Cold potable water	1 US cup
Food-safe ice	1 US cup
Sesame seeds	1–2 tbsp

Step by step

1.Choose the cucumber-only version
This selects Maangchi’s cucumber-led formula. A handful of dried seaweed has variable hydrated volume, so do not add it arbitrarily here.
2.Cut and season
Julienne cucumber and mix with garlic, scallion, kosher salt, soy sauce, sugar and vinegar.
3.Measure water and ice
Add one US cup cold potable water and one US cup food-safe ice. Ice contributes dilution; do not double the water and then add extra ice.
4.Serve promptly
Add sesame, portion into small bowls and serve immediately. Refrigerate leftovers promptly.

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People eating (1–20)

Text to take with you

오이미역냉국 · Oi-naengguk · Oi-naengguk (Chilled Cucumber Seaweed Soup)

1명이 먹으려고 합니다. 인분·접시·냄비 중 주문 단위와 최소 주문량, 추천 양을 알려 주세요. / This is for 1 person. Please explain whether you sell portions, plates or pots, the minimum order and the recommended amount.

밥·반찬이 포함되나요? 따로 주문하는 항목과 추가 비용을 알려 주세요. / Are rice and side dishes included? Please explain separate items and extra charges.

주재료와 양념에 무엇이 들어가나요? / What are the main ingredients and seasonings?

Check measured water and ice, vinegar, soy and kosher salt, and cold storage.

If you have ingredient restrictions, name them and ask about sauces, toppings and preparation equipment. The seller must confirm whether changes are possible.

https://k-roastmysoul.com/en/foods/oi-naengguk

Measurement, doneness and storage references

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Your notes

Places to check when planning a meal

Candidates to investigate for this food. Maps use sourced location records; confirm the current menu, opening and booking directly. This list is not a tasting review or an award certification.

Gijang Seaweed Grounds

Gijang, Busan

Exact current location is not verified here. Confirm the venue through its official information before planning a visit.

Wando Seaweed and Kelp Grounds

Wando, South Jeolla

Exact current location is not verified here. Confirm the venue through its official information before planning a visit.

The fictional face of this dish

Water element · a face of soft curves

You cool the whole room without lighting a fire. A face like chilled cucumber seaweed soup in a midsummer kitchen.

Upright: Naengguk needs no fire and five minutes. Work you can start without grand preparation is sitting right in front of you. Start it the way one pours well water. The perfect broth is usually an excuse.

Reversed: Pouring the whole vinegar bottle does not make it cooler. Too much acid is not soup but sour purgatory. Your stinging prescriptions have been running strong lately: fill half the bowl with something mild as cucumber.

The K-Roast take: Grandma's roast

Fictional food metaphors inspired by traditional face-reading, not measurements of your face or personality.

Those eyes are cool and moist, like a summer well. Do you know why naengguk is the salvation of the summer table? On days no one can bear to stand before a flame, it is a soup you can enjoy cold without spending long at the stove. You are that soup, child: the gift of reviving a wilted room without raising its temperature. That gift is rarer than air conditioning.

That nose runs long and smooth as a cucumber: a face without excess. Look at this soup's roster. Cucumber, seaweed, vinegar, water: four and done. Its nature is to cloud with every addition. Your work is also the craft of subtraction, settling in one chilled bowl what others need ten meetings for. Those who call that simplicity lazy are the same people boiling hot soup in midsummer. Do not engage.

That mouth finishes clean. Naengguk's sourness strikes the tongue and vanishes at once: that is its virtue, and your words work the same, sharp without residue. But remember: for the soup to be truly cold, the bowl itself must be chilled in advance. Crisp words over a lukewarm expression make a failed naengguk.

Naengguk is the soup set fastest on the hottest day. You are the one who cools quickest when everyone else wilts, and that speed builds your seat. Stay in place like a well; the heat-struck will find their own way to you.
Grandma's blessing

Table compatibility

Hot nutty potato pancake with tangy cold soup is the veteran couple of the summer porch, while slow-simmered gomtang stands opposite in temperature and philosophy alike; seated together, both just get embarrassed.