Bibimguksu is the ideal chilled noodle salad for hot summer days — bright, spicy, and ready in about 15 minutes.
The perfect summer dish
Bibimguksu (비빔국수) is a popular Korean cold spicy noodle dish that comes together quickly. It uses thin wheat somyeon noodles (similar to Japanese somen) tossed in a savory, tangy, slightly sweet gochujang-based sauce and served chilled with crisp vegetables and optional toppings.
Bibimguksu ingredients
Most ingredients are available at Korean grocery stores; using Korean brands for items like gochujang, soy sauce (ganjang), and plum extract gives the most authentic flavor.
Sauce
- Gochujang – Korean red pepper paste. It looks fiery red but many brands are mild to medium. Check the label for spice levels and pick 1–3 for mild to medium heat.
- Soy sauce – Korean soy sauce tastes different from Japanese shoyu: usually less salty and a bit sweeter. If you use another soy sauce, adjust amounts to taste.
- Vinegar – A mild Korean vinegar works well to brighten the sauce.
- Sesame oil – Adds a nutty aroma and depth.
- Sweet onion – Finely grate for a soupy, integrated texture; chopped onion won’t dissolve into the sauce the same way.
- Plum extract – A small but important ingredient that brings fruity sweetness and gentle tang to balance the heat.
- Sugar – Adjust to taste to round out the flavors.
- Sesame seeds – For texture and toasting flavor.
Noodle cooking tips
Somyeon noodles are very thin and can overcook fast. Use these simple steps to keep them chewy and springy:
- Bring a large pot of water to a rolling boil and add the dry somyeon. Stir occasionally — the noodles will soften quickly. When the water returns to a strong boil, add a small splash (~1/3 cup) of cool water to reduce the temperature and repeat this cooling step as needed (many cooks do this 2–3 times) to avoid overcooking.
- After roughly 6–8 minutes (times vary by brand), drain the noodles and rinse under cold running water. Vigorously swish the noodles in water to wash away excess starch — imagine washing laundry until the rinse water clears.
- Move the noodles to an ice water bath and chill for about 5 minutes to firm up the texture. Drain thoroughly and gently squeeze out excess water before tossing with sauce.
Ingredients (serves 2)
- 200g somyeon noodles (dry)
- ¼ cup (≈75g) gochujang
- 1 tbsp soy sauce
- 1 tbsp vinegar
- 1 tbsp sesame oil
- 3 tbsp sweet onion, finely grated
- 1 tbsp plum extract
- 2 tsp sugar (adjust to taste)
- 1 tsp sesame seeds
- 150g sliced cucumber
Toppings (optional): gochugaru (Korean red pepper flakes), boiled egg, kimchi
Instructions
- Bring a large pot of water to a boil and cook the somyeon until just tender but still slightly firm. When the pot returns to a boil, add a splash of cool water to lower the temperature and repeat as needed to avoid overcooking. Drain the noodles and vigorously rinse in cold water until the water runs clear. Transfer to an ice water bath for about 5 minutes to achieve a chewy bite. Drain and gently squeeze out excess water.
- Make the sauce: whisk together gochujang, soy sauce, vinegar, sesame oil, grated onion, plum extract, and sugar. Taste and adjust seasoning — add sugar gradually until the balance of sweet, salty, tangy, and spicy suits you. Lightly crush half the sesame seeds and stir them into the sauce, reserving the rest for garnish.
- Toss the chilled noodles with the sauce and sliced cucumber until evenly coated. Use clean hands or a glove to mix thoroughly if preferred. Plate and top with a boiled egg, kimchi, and a sprinkle of gochugaru and toasted sesame seeds. Serve immediately and enjoy.
Notes
This recipe uses Korean soy sauce (ganjang), which tends to be less salty and a bit sweeter than Japanese varieties. If you substitute a different soy sauce, taste and adjust quantities accordingly. Plum extract is subtle but important for authentic balance — if unavailable, a touch of apricot jam or mild fruit syrup can work in a pinch, adjusted sparingly.
More Korean recipes
- corn cheese – a cheesy, sweet-savory side often served at Korean BBQ
- rice cake skewers (tteok-kkochi) – crispy outside, chewy inside — a classic street snack
- kimchi fried rice – comforting and full of umami
- mini Korean corn dogs – popular street food with playful coatings
Bibimguksu (Korean Spicy Noodles)
- Author: Jasmine and Tea
- Total Time: 15 minutes
- Yield: 2 servings