Kongguksu – Classic
This is the traditional, time-tested version of the dish. It stays true to its origins, using well-established techniques and ingredients that define its authentic flavor. A perfect starting point for exploring its evolution.
Kongguksu is a cherished traditional Korean dish, delighting palates with its refreshing simplicity and rich historical roots. Perfect for hot summer days, this cold noodle soup is crafted from smooth, silky soybean broth and tender somyeon noodles. It originates from South Korea, where it has been enjoyed for centuries as a beloved staple in Korean homes. The creamy and nutty flavor of the soy milk, combined with the supple texture of the noodles, makes it a delightful culinary experience. Kongguksu beautifully marries the delicate flavors of soybean with refreshing cucumber and sesame seeds, creating a dish that’s both comforting and rejuvenating.
Ingredients
- soybeans – 1 cup / 200 g
- water – 6 cups / 1.5 L
- somyeon (thin wheat noodles) – 200 g
- cucumber, julienned – 1 medium
- roasted sesame seeds – 2 tablespoons
- salt – to taste
- ice cubes – optional
Instructions
- Rinse the soybeans, then soak them in water overnight or at least 8 hours.
- Drain the soaked soybeans and remove any loose skins.
- In a blender, combine soaked soybeans with 4 cups (960 ml) of fresh water. Blend until smooth and creamy.
- Pour the blended soybeans through a fine sieve or cheesecloth into a bowl to separate the milk from the pulp.
- Boil somyeon noodles according to the package instructions. Rinse under cold water and drain well.
- Combine the soy milk with remaining water and season with salt to taste. Chill in the refrigerator.
- Divide the noodles among four bowls, pour the chilled soy milk over them.
- Top each bowl with julienned cucumber and a sprinkle of roasted sesame seeds.
- Serve cold. Add ice cubes for extra chill, if desired.
Substitutions
- somyeon -> soba noodles
- soybeans -> almonds
- cucumber -> zucchini
Enhancements in the Next Evolution
- Add a garnish of chopped spring onions for extra flavor.
- Use toasted black sesame seeds for a contrasting visual appeal.
- Include a dash of vinegar in the broth for a subtle tang.
Curious to see how this dish evolves? Discover refined flavors and enhanced techniques in the next version.

South Korea