If you’re craving something spicy, refreshing, and totally addictive, these Korean Spicy Cold Noodles (Bibim Guksu) are about to be your new favorite meal.
The chewy noodles, refreshing crunchy toppings, and bold gochujang-based sauce come together in minutes and hit every flavor—sweet, tangy, salty, spicy. Trust me, this recipe will be your new favorite dish!
What is Korean Spicy Cold Noodles (Bibim Guksu)?
Bibim guksu, also known as Korean spicy cold noodles, is a super popular warm-weather dish in Korea made with thin noodles, a spicy-sweet-tangy sauce, and crisp toppings. The name literally translates to “mixed noodles,” and that’s exactly what you do—mix everything up and slurp away.
Unlike some heavier noodle dishes, this bibim guksu recipe is light and refreshing but still packs serious heat and flavor thanks to ingredients like gochujang and gochugaru. It’s perfect for when you want something quick but still super satisfying.
Why You’ll Love Korean Spicy Cold Noodles
- Quick and Easy: The noodles cook in minutes, and the sauce just needs a quick stir to combine.
- Flavor-Packed: Sweet, spicy, tangy, and umami all come together in one bowl.
- Customizable: You can easily switch up the noodles (I used Black Rice noodles for a healthier alternative), toppings, or spice level based on what you like or have on hand.
If you like this noodle recipe, then check out my Soy Sauce Chow Mein and Beef Chow Fun (Beef Ho Fun) recipes!
Ingredients
- Thin Buckwheat or Soba Noodles: These noodles are chewy, nutty, and hold up well in cold dishes. I made mine with Black rice noodles for a healthier alternative!
- Kimchi: Adds a fermented tang and a little crunch for contrast and extra spice.
- Soft-Boiled Eggs: Creamy yolk adds richness and balances the spicy sauce.
- Persian Cucumber: Refreshing and crisp—helps cool the heat.
- Sesame Seeds: Adds nutty flavor and a subtle crunch to the final dish.
- Gochujang: The star of the sauce, this Korean chili paste brings deep umami and bold heat.
- Gochugaru: Korean chili flakes that add adjustable spiciness and a gorgeous red color.
- Soy Sauce: Adds a salty, savory depth to balance the acidity.
- Rice Vinegar: Brings that essential tang to round out the flavors.
- Sugar: Balances the heat and vinegar with a little sweetness.
- Sesame Oil: Adds a toasty aroma and silkiness to the sauce.
- Garlic: Gives a sharp, savory bite to the mix.
- Water: Thins the sauce just enough so it coats the noodles perfectly.
Customizations
- Use Different Noodles: Swap soba with thin wheat noodles or even somen if that’s what you have. You can also use brown or black rice noodles for a healthier alternative!
- Add Additional Protein: Top it with grilled chicken, tofu, or shrimp for a more filling meal.
- Tone Down the Heat: Reduce the gochujang sauce if you want it less spicy.
- Load on the Veggies: Add shredded carrots, bean sprouts, or lettuce for extra crunch and color.
How to Make Korean Spicy Cold Noodles (Bibim Guksu)
Cook and Chill the Noodles
Boil the noodles according to the package instructions. Once cooked, drain and rinse them under cold water.
Transfer to a bowl of ice water and stir gently to remove any excess starch—this helps the noodles stay bouncy and not sticky. Let them sit for about 5 minutes, then drain completely.
Make the Sauce
In a large bowl, mix together gochujang, gochugaru, soy sauce, rice vinegar, sugar, sesame oil, sesame seeds, garlic, and water until smooth. Microwave the mixture for 20 seconds to help dissolve the sugar, then stir again.
Mix and Serve
Add the chilled, drained noodles to the bowl of sauce. Toss everything together until the noodles are evenly coated.
Transfer to a clean serving bowl and top with chopped kimchi, sliced cucumber, and halved soft-boiled eggs. Finish it off with a sprinkle of sesame seeds.
Storage
These korean spicy cold noodles (bibim guksu) are best enjoyed fresh, but you can store the sauce separately in the fridge for up to 3 days to speed things up later.
Tips
- Chill the noodles properly: Ice water helps keep the noodles springy and stops them from clumping.
- Microwave the sauce: Just a quick 20 seconds helps dissolve the sugar and makes the flavors blend more smoothly.
- Toss just before serving: For the best flavor and texture, mix the noodles with the sauce right before you eat.
Korean Spicy Cold Noodles (Bibim Guksu)
Ingredients
Noodles and Toppings
- 8 oz. Thin buckwheat or soba noodles
- ¼ cup kimchi chopped
- 2 soft-boiled eggs
- ½ Persian cucumber thinly sliced
- 1 teaspoon sesame seeds
Spicy Sauce
- 3 tablespoon gochujang Korean chili paste
- 1-2 teaspoon gochugaru Korean chili flakes, adjust to your preference
- 3 tablespoon soy sauce
- 2 tablespoon rice vinegar
- 1 tablespoon granulated sugar
- 2 teaspoon sesame oil
- 1 tablespoon sesame seeds
- 1 garlic clove grated
- 2 tablespoon water
Instructions
- Cook noodles according to the package. Drain and rinse the noodles then transfer to a bowl of ice cold water, stirring to remove excess starch, for 5 mins. Drain completely.
- In a large bowl, whisk together gochujang, gochugaru, soy sauce, rice vinegar, sugar, sesame oil, sesame seeds, garlic, and water until smooth. Microwave the sauce (make sure bowl is microwave safe) for 20 seconds to dissolve the sugar then stir. Add the noodles to the sauce and gently toss to coat the noodles evenly.
- Transfer the noodles to a clean bowl then top with kimchi, soft-boiled egg, and thinly sliced cucumbers. Garnish with sesame seeds.
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