KOREAN HOME COOKING
Kongmul Gaji Naengguk (콩물가지냉국): Chilled Soy Milk Eggplant Soup
콩물가지냉국 · Kongmul Gaji Naengguk
Silky starch-coated eggplant, chilled soy milk, cucumber, perilla oil, and black sesame make a soothing Korean summer soup.
Editorial guidance updated September 16, 2026 · Not a claim of kitchen testing
콩물가지냉국 · Kongmul Gaji NaenggukQUICK ANSWER
What to know before you cook
Silky starch-coated eggplant, chilled soy milk, cucumber, perilla oil, and black sesame make a soothing Korean summer soup.
Kongmul Gaji Naengguk (콩물가지냉국) takes about 25 minutes and makes 4 servings. It is rated easy and the finished dish is not spicy. Add a pinch of gochugaru or finely sliced green chile at the table if desired.
The key cooking cue: Do not use vanilla or sweetened soy milk.
WHY THIS DISH MATTERS
A little cultural context
Naengguk means chilled soup, a practical category of Korean summer dishes. This modern version borrows the creamy refreshment of kongguksu while replacing noodles with tender eggplant.
INGREDIENTS
What you'll need
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COOKING WEBTOON
Cook it panel by panel
A quick visual memory guide for the whole recipe.
1Coat the eggplant
Cut the eggplant into 2-inch batons. Toss thoroughly with potato starch so every piece has a thin, even coat.
- 2
Blanch briefly
1 minuteCook the coated eggplant in gently boiling water, starting with 1 minute and checking a piece for tenderness. Thicker batons need longer; work in batches.
- 3
Chill
Transfer immediately to ice water, then drain very well. Finely dice or julienne the cucumber.
- 4
Assemble cold
Divide eggplant and cucumber among chilled bowls. Pour in cold soy milk, season with salt, and finish with perilla oil and black sesame.
AI-assisted illustration. Follow the written recipe below for exact measurements, doneness, and food-safety details.
DIRECTIONS
How to make it
- 01
Coat the eggplant
Cut the eggplant into 2-inch batons. Toss thoroughly with potato starch so every piece has a thin, even coat.
- 02
Blanch briefly
Cook the coated eggplant in gently boiling water, starting with 1 minute and checking a piece for tenderness. Thicker batons need longer; work in batches.
- 03
Chill
Transfer immediately to ice water, then drain very well. Finely dice or julienne the cucumber.
- 04
Assemble cold
Divide eggplant and cucumber among chilled bowls. Pour in cold soy milk, season with salt, and finish with perilla oil and black sesame.
COOK WITH CONFIDENCE
Fix common problems
Use the symptom, likely cause, and rescue step while you cook.
Soy broth is watery
Likely causeEggplant carried ice-bath water into the bowl.
How to fix itDrain chilled eggplant thoroughly and use cold, plain unsweetened soy milk. Do not simmer or reduce this cold soup.
Eggplant is firm or coating gummy
Likely causeBatons are thicker than the recipe or the pan is crowded.
How to fix itTreat one minute as a starting cue: test a piece and gently blanch until the flesh is tender. Chill in clean ice water, drain well and keep cold.
Broth tastes sweet or flavored
Likely causeSweetened or vanilla soy milk was used.
How to fix itUse plain unsweetened soy milk and season while cold. Vanilla cannot be removed by adding salt or heating.
SHOP & SUBSTITUTE
Cook it anywhere
Ingredient swaps
Perilla oilUse toasted sesame oil, starting with 1 tablespoon because it is more assertive.
Potato starchUse cornstarch; the coating will be a little less springy.
Korean pantry guide
A fragrant Korean seed oil with an earthy, toasted aroma, especially good with vegetables.
Search: Korean roasted perilla oil deulgireumA fine starch that gives blanched vegetables a delicate, pleasantly slippery coating.
Search: Korean potato starch gamja jeonbunServe it with
- Steamed rice
- Cucumber kimchi
- Grilled fish
Spice level
Not spicy. Add a pinch of gochugaru or finely sliced green chile at the table if desired.
Storage & serving
Keep the eggplant and soy broth separate and refrigerated for up to 2 days. Assemble just before serving and do not freeze.
REAL COOK QUESTIONS
Good questions, clear answers
Short answers for substitutions, heat level, make-ahead cooking, and serving.
What can I substitute for Perilla oil in Kongmul Gaji Naengguk (콩물가지냉국)?
Use toasted sesame oil, starting with 1 tablespoon because it is more assertive.
Is Kongmul Gaji Naengguk (콩물가지냉국) spicy?
Not spicy. Add a pinch of gochugaru or finely sliced green chile at the table if desired.
Can I make Kongmul Gaji Naengguk (콩물가지냉국) ahead of time?
Keep the eggplant and soy broth separate and refrigerated for up to 2 days. Assemble just before serving and do not freeze.
What should I serve with Kongmul Gaji Naengguk (콩물가지냉국)?
Serve it with Steamed rice, Cucumber kimchi, Grilled fish.
KEEP COOKING
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