Korean Cold Spicy Noodles (Bibim Guksu) – Easy 30-Minute Summer Recipe

Looking for a refreshing meal that’s spicy, flavorful, and ready in under 30 minutes? These Korean Cold Spicy Noodles (Bibim Guksu) are the perfect summer dish. Chewy noodles are tossed with crisp fresh vegetables and coated in a bold homemade gochujang sauce that’s sweet, savory, tangy, and spicy.

This easy Korean noodle recipe is perfect for lunch, dinner, or meal prep and can be customized with your favorite vegetables and protein.

Follow the step-by-step recipe below and watch the video to see exactly how I make this Cold Spicy Noodles

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Korean Cold Spicy Noodles (Bibim Guksu)

A refreshing Korean cold noodle recipe made with chewy noodles, crisp vegetables, and a bold homemade gochujang sauce. Perfect for summer lunches, light dinners, or meal prep, and ready in just 30 minutes.
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Prep Time 20 minutes
Cook Time 10 minutes
Total Time 30 minutes
Servings: 4
Course: dinner, lunch, Main Course
Cuisine: Asian, Korean
Calories: 470
Ingredients Equipment Method Notes

Ingredients
  

Noodles
  • 600 g Korean naengmyeon noodles or somyeon, soba, ramen, rice noodles, or your favorite thin noodles
  • 1 pc Medium zucchini julienned
  • 1 pc Large cucumber julienned
  • 10 pcs Perilla leaves thinly sliced
  • 1 head Romaine lettuce shredded
  • 2 pc Hot chili pepper (optional) sliced
Sauce
  • 5 cloves Garlic
  • 1/2 inch Fresh ginger
  • 1 pc Small onion
  • 1 pc Small apple
  • 100 ml Water
  • 4 tbsp Gochujang (Korean fermented chili paste)
  • 4 tbsp Gochugaru (Korean red pepper flakes) Korean red pepper flakes
  • 3 tbsp Toasted sesame oil
  • 2 tbsp Soy sauce
  • 1½ tsp Salt
Garnish
  • Green onions
  • Sesame seeds
  • Extra cucumber

Equipment

  • Large pot
  • blender
  • Cutting board
  • chef's knife
  • large mixing bowl

Method
 

  1. Cook the noodles according to the package directions.
  2. Drain and rinse thoroughly under cold running water until the noodles are completely cool. Drain well.
  3. Prepare the vegetables
  4. Julienne the zucchini and cucumber.
  5. Thinly slice the romaine lettuce, perilla leaves, and chili pepper.
  6. Make the sauce
  7. Blend together: garlic, ginger, onion, apple, water until smooth.
  8. Add the gochujang, gochugaru, sesame oil, soy sauce, and salt.
  9. Mix well.
  10. Combine the noodles, vegetables, and sauce in a large bowl.
  11. Toss until evenly coated.
  12. If the sauce is too thick, add 1–3 tablespoons of cold water.
  13. Garnish
  14. Top with green onions, sesame seeds, and extra cucumber.
  15. Serve immediately.

Notes

• Rinse the noodles thoroughly in cold water to remove excess starch and achieve the perfect chewy texture.
• If you can’t find perilla leaves, substitute fresh basil or mint.
• Adjust the spice level by using more or less gochujang and gochugaru.
• Add grilled chicken, shrimp, tofu, or a boiled egg for extra protein.
• Best enjoyed fresh, but leftovers can be refrigerated for up to 2 days.

Why You’ll Love This Recipe

If you’re looking for a quick, refreshing meal packed with bold Korean flavors, this Bibim Guksu recipe is a must-try.

  • 🌶️ Bold and flavorful – A spicy, savory, and slightly sweet gochujang sauce coats every bite.
  • 🥒 Fresh and crisp – Loaded with zucchini, cucumber, romaine lettuce, and aromatic perilla leaves.
  • ⏱️ Ready in 30 minutes – Perfect for busy weeknights or an easy summer lunch.
  • 🥢 Easy to customize – Use your favorite noodles, adjust the spice level, or add chicken, tofu, shrimp, or a boiled egg.
  • ☀️ Perfect for hot weather – Served cold, it’s light, refreshing, and incredibly satisfying.

Ingredient Substitutions

Don’t have Korean ingredients? Here are a few easy swaps:

  • Naengmyeon noodles → Soba, somyeon, ramen, rice noodles, or spaghetti.
  • Perilla leaves → Basil or mint.
  • Romaine → Iceberg lettuce or green leaf lettuce.
  • Gochugaru → Mild crushed red pepper (flavor will be different but still delicious).

Storage

Store leftovers in an airtight container in the refrigerator for up to 2 days.
Because the vegetables release moisture over time, this recipe tastes best the day it’s made.

Frequently Asked Questions

What is Bibim Guksu?

Bibim Guksu is a popular Korean cold noodle dish made with spicy gochujang sauce, fresh vegetables, and chewy noodles. It’s especially popular during the summer because it’s light, refreshing, and easy to prepare.

Can I make it less spicy?

Absolutely. Simply reduce the amount of gochujang and gochugaru to suit your taste.

Can I make it ahead of time?

Yes. Prepare the sauce and vegetables in advance, but mix everything together just before serving for the freshest texture.

Nutrition (Approximate Per Serving)

  • Calories: 470
  • Protein: 18 g
  • Carbohydrates: 60 g
  • Fat: 18 g
  • Fiber: 5 g

What to Serve with Bibim Guksu

While these Korean Cold Spicy Noodles are delicious on their own, they pair wonderfully with a variety of Korean-inspired side dishes and proteins.

Try serving them with:

Finish the meal with a refreshing glass of iced green tea or sparkling water with lemon.

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