Bibim Guksu is a refreshing Korean spicy cold noodle dish made with thin wheat noodles, a sweet and tangy gochujang sauce, sesame oil, perilla leaves, and optional toppings like yeolmu kimchi, boiled egg, and roasted seaweed.
It is spicy, sweet, sour, nutty, and incredibly refreshing, making it one of the best Korean noodle dishes for warm weather or a quick meal.
This easy Bibim Guksu recipe uses a bold sauce made with gochujang, gochugaru, vinegar, sugar, soy sauce, garlic, sesame oil, and a small touch of wasabi for extra sharpness.
What is Bibim Guksu?
Bibim Guksu means Korean mixed noodles.
The word “bibim” means mixed, and “guksu” means noodles.
Unlike hot noodle soup, Bibim Guksu is served cold. The noodles are cooked, rinsed in cold water, and mixed with a spicy, sweet, and tangy sauce.
In Korea, Bibim Guksu is often enjoyed as a quick lunch, summer meal, or simple late-night dish.
Recipe Information
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 20 minutes
- Servings: 2
- Difficulty: Easy
- Cuisine: Korean
- Main Ingredient: Thin wheat noodles
- Best Served As: Cold noodle dish
Ingredients
Main Ingredients
- 2 servings somyeon noodles or thin wheat noodles
- 2 to 3 perilla leaves
- Yeolmu kimchi, optional
- 1 boiled egg, optional
- Roasted seaweed, optional
- Sesame seeds, for garnish
For the Spicy Sauce
- 2 tbsp gochujang
- 2 tbsp gochugaru
- 4 tbsp vinegar
- 3 tbsp sugar
- 1 tbsp minced garlic
- 2 tbsp soy sauce
- 1 tsp wasabi
- 1.5 tbsp sesame oil
- Chopped chili pepper, to taste
- Ground sesame seeds, to taste
Ingredient Notes
Somyeon Noodles
Somyeon are thin Korean wheat noodles.
They cook quickly and become chewy when rinsed well in cold water. If you cannot find somyeon, you can use thin wheat noodles or very thin Asian noodles.
Gochujang
Gochujang is Korean red chili paste.
It gives Bibim Guksu its deep spicy, savory, and slightly sweet flavor.
Gochugaru
Gochugaru adds color, heat, and a clean Korean chili flavor.
Using both gochujang and gochugaru makes the sauce richer and more balanced.
Vinegar
Vinegar is important because Bibim Guksu should taste spicy, sweet, and tangy.
It gives the noodles a refreshing flavor.
Wasabi
Wasabi is optional, but a small amount gives the sauce a sharp and refreshing kick.
Do not add too much. One teaspoon is enough.
Perilla Leaves
Perilla leaves add a fresh, herbal Korean flavor.
If you do not have them, you can skip them or use cucumber as a fresh topping.
Yeolmu Kimchi
Yeolmu kimchi is young radish greens kimchi.
It adds crunch, acidity, and extra Korean flavor. It is optional but highly recommended.
How to Make Bibim Guksu
Step 1: Make the Sauce
In a bowl, combine:
- 2 tbsp gochujang
- 2 tbsp gochugaru
- 4 tbsp vinegar
- 3 tbsp sugar
- 1 tbsp minced garlic
- 2 tbsp soy sauce
- 1 tsp wasabi
- 1.5 tbsp sesame oil
- Chopped chili pepper
- Ground sesame seeds
Mix well until the sauce becomes smooth.
This sauce should taste spicy, sweet, tangy, and slightly nutty.
Set it aside while preparing the noodles.
Step 2: Prepare the Toppings
Slice the perilla leaves into thin strips.
If using yeolmu kimchi, chop it into bite-sized pieces.
Prepare a boiled egg if desired.
You can also prepare roasted seaweed and extra sesame seeds for garnish.
Step 3: Cook the Noodles
Bring a pot of water to a boil.
Add a small pinch of salt.
Add the somyeon noodles and cook for about 4 to 5 minutes, or according to the package instructions.
Stir occasionally so the noodles do not stick together.
Step 4: Rinse the Noodles
Drain the cooked noodles.
Rinse them thoroughly under cold running water or in ice water.
Rub the noodles gently with your hands while rinsing.
This removes excess starch and gives the noodles a chewy, refreshing texture.
Step 5: Drain Well
Drain the noodles well.
Too much water left on the noodles can make the sauce taste weak.
Let the noodles sit briefly in a strainer before mixing.
Step 6: Mix the Noodles with Sauce
Place the drained noodles in a large bowl.
Add the prepared spicy sauce.
Mix well until every strand of noodle is evenly coated.
You can use chopsticks or clean hands to mix the noodles thoroughly.
Step 7: Add Toppings
Transfer the mixed noodles to serving bowls.
Top with:
- Sliced perilla leaves
- Yeolmu kimchi
- Boiled egg
- Roasted seaweed
- Sesame seeds
Serve immediately.
Pro Tips
Rinse the Noodles Well
This is one of the most important steps.
Rinsing removes starch and makes the noodles chewy instead of sticky.
Drain the Noodles Completely
If the noodles are too wet, the sauce will become watery.
Drain them well before mixing.
Balance the Sauce
Bibim Guksu sauce should be spicy, sweet, sour, and savory.
If it tastes too spicy, add a little more sugar.
If it tastes too sweet, add a little more vinegar.
If it tastes too light, add a small amount of soy sauce.
Add Wasabi Carefully
Wasabi gives the sauce a sharp kick, but too much can overpower the dish.
Start with one teaspoon and adjust only if needed.
Serve Immediately
Bibim Guksu tastes best right after mixing.
The noodles can become soft if they sit too long in the sauce.
What to Serve with Bibim Guksu
Bibim Guksu pairs well with:
- Korean boiled dumplings
- Grilled pork belly
- Kimchi
- Cucumber salad
- Boiled egg
- Korean fried chicken
- Cold cucumber soup
For a simple Korean meal, serve Bibim Guksu with kimchi and a boiled egg.
Storage Tips
Bibim Guksu is best eaten immediately after mixing.
If you want to prepare ahead, store the sauce and cooked noodles separately.
Keep the sauce in an airtight container in the refrigerator for up to 3 days.
Cook and rinse the noodles right before serving for the best texture.
Frequently Asked Questions
Can I make Bibim Guksu without wasabi?
Yes. Wasabi is optional.
The sauce will still taste delicious without it.
Can I use other noodles?
Yes. Somyeon is the traditional choice, but you can also use thin wheat noodles, soba noodles, or even thin rice noodles.
Is Bibim Guksu very spicy?
It is moderately spicy.
To make it milder, reduce the amount of gochugaru or use less chopped chili pepper.
Can I add cucumber?
Yes. Thinly sliced cucumber is one of the best toppings for Bibim Guksu.
It adds crunch and freshness.
Can I make the sauce in advance?
Yes. The sauce can be made ahead and stored in the refrigerator for up to 3 days.
Mix it well before using.
Why are my noodles sticky?
The noodles were probably not rinsed enough.
After boiling, rinse them thoroughly in cold water until they feel firm and slippery.
Final Thoughts
Bibim Guksu is one of the easiest and most refreshing Korean noodle dishes you can make at home.
The combination of chewy cold noodles, spicy gochujang sauce, tangy vinegar, nutty sesame oil, and fresh toppings creates a bold and satisfying flavor.
If you want a quick Korean meal that is spicy, sweet, sour, and refreshing, this Bibim Guksu recipe is a perfect choice.
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