Kongnamul Guk (Bean Sprout Soup)
Clear, refreshing bean sprout soup with garlic and green onions. Korea's go-to hangover cure and the simplest soup in the Korean kitchen.
Why This Recipe Works
- Cold start + sealed lid prevents the fishy enzyme reaction — the #1 mistake home cooks make.
- Soybean sprouts (not mung bean) provide thick, crunchy stems that hold up in hot broth.
- Minimal ingredients let the clean, nutty bean sprout flavor come through — this is a soup that tastes like clarity.
- Under 20 minutes from start to table.
Korea's Morning-After Medicine
Kongnamul guk is the first thing millions of Koreans eat after a night of soju. It appears on every haejangguk (hangover soup) restaurant menu, and it's the soup mothers make when their adult children come home looking rough. Baek Jong Won's 5-million-view video proves that even the simplest Korean soups have a technique worth learning — that lid rule is non-negotiable.
Kongnamul Guk (Bean Sprout Soup)
🛒 Ingredients
- ✦6 oz soybean sprouts (kongnamul)
- ✦3 cups water
- ✦2 cloves garlic, minced
- ✦1 tablespoon fish sauce (or 1/2 teaspoon salt)
- ✦1 green onion, sliced
- ✦1 teaspoon sesame oil
- ✦1/2 teaspoon gochugaru (optional)
- ✦1 egg (optional)
👨🍳 Instructions
01Step 1
Place soybean sprouts and cold water in a pot. Cover with a lid.
02Step 2
Bring to a boil over high heat. Once boiling, reduce to medium and simmer for 10 minutes with the lid ON.
03Step 3
After 10 minutes, remove the lid. Add garlic, fish sauce, and gochugaru if using. Simmer for 3 more minutes.
04Step 4
Crack in an egg if desired and stir gently. Cook for 1 minute.
05Step 5
Ladle into bowls. Garnish with green onion and a drizzle of sesame oil.
Nutrition Per Serving
Estimates based on standard preparation. Adjustments alter macros.
🔄 Substitutions
Instead of Soybean sprouts...
Use Mung bean sprouts (sukju)
Thinner, cook faster (5 minutes), less robust soup — but acceptable
Instead of Fish sauce...
Use Soup soy sauce (guk-ganjang)
Traditional option — lighter colored and less salty than regular soy sauce
🧊 Storage & Reheating
In the Fridge
Store for 1-2 days. Sprouts soften over time.
In the Freezer
Not recommended.
Reheating Rules
Reheat gently in a pot. The sprouts should still have some crunch.
❓ Frequently Asked Questions
Why can't I lift the lid?
Soybean sprouts contain an enzyme (lipoxygenase) that produces a fishy, beany odor when exposed to air at certain temperatures. Keeping the lid on during the first 10 minutes of cooking allows the enzyme to fully deactivate. Once deactivated, you can safely remove the lid.
Why is bean sprout soup a hangover cure?
Korean soybean sprouts are rich in asparagine, an amino acid that helps the body process acetaldehyde — the toxic byproduct of alcohol that causes hangover symptoms. This isn't folk wisdom — it's been studied. The hot broth also rehydrates and the salt replenishes electrolytes.
The Science of
Kongnamul Guk (Bean Sprout Soup)
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