Fiery Korean Cucumber Salad (Oi Muchim) in 10 Minutes
Aaron and Claire adapted by JojoM

This Fiery Korean Cucumber Salad (Oi Muchim) is a quick, crunchy, and spicy side dish tossed in gochugaru, sesame oil, and vinegar. A refreshing banchan ready in just 10 minutes!
A Taste of Korea: Spicy Cucumber Salad
Spicy Cucumber Salad, also known as Oi Muchim, is a popular Korean side dish that's perfect for the summer. This refreshing salad features a delightful combination of fresh cucumbers, onions, garlic chives, and a spicy, tangy dressing. In just a few simple steps, you'll have a flavorful, zesty side dish that pairs well with a variety of meals. So let's get cooking!
Ingredients
For the vegetables
- 1 cucumber (approximately 300 grams)
- 1 yellow onion (approximately 200 grams), soaked in cold water for 5 minutes
- 1 bunch green onions (approximately 100 grams), chopped
For the Sauce
- 1.5 tbsp gochugaru (Korean red pepper flakes)
- 1 tbsp of sugar
- 1.5 tbsp vinegar
- 1 tbsp sesame oil
- 1 tbsp sesame seeds
- 1/2 tbsp minced garlic
- 1/4 tsp salt, to taste
Instructions
- Soak the copped onions in cold water.
- Cut the cucumber into quarter-inch thick slices.
- Chop the green onions into small pieces.
- In a bowl, mix all the sauce ingredients until well combined.
- In a separate bowl, combine cucumber, onion, and green onions.
- Pour the sauce over the vegetables and gently toss until well coated.
- Taste and adjust the seasoning with salt, if necessary.
- Let the salad sit for a few minutes to allow flavors to meld.
Serving Suggestions
This delicious Korean Spicy Cucumber Salad pairs perfectly with grilled meats like Korean BBQ, or as a refreshing side dish for rice dishes and noodle bowls. Its tangy, spicy flavor also complements fish and tofu dishes.
Ingredient Substitutes
If you can't find gochugaru (Korean red pepper flakes), you can substitute it with regular red pepper flakes or a mix of paprika and cayenne pepper for a similar spicy kick.
Nutrition Information (per serving)
This recipe serves 4, with approximately 150 grams per serving.
- Calories: 80
- Fat: 4g
- Carbohydrates: 10g
- Protein: 2g
- Sodium: 150mg
Tips and Tricks
- For a less spicy salad, reduce the amount of gochugaru or use a milder chili pepper.
- Add a pinch of umami flavor with a dash of fish sauce or soy sauce.
- Soaking the onions in cold water helps reduce their pungency and adds a mild, sweet taste.
FAQ
How long does this Korean Spicy Cucumber Salad last in the fridge? This salad is best enjoyed fresh, but it can last up to 2 days in the refrigerator. Store in an airtight container to maintain freshness.
Can I make this salad ahead of time? Yes! In fact, letting the salad sit for a few hours in the fridge allows the flavors to meld and intensify.
Is this salad gluten-free? This recipe is gluten-free as written, but always double-check the ingredients to ensure they don't contain hidden gluten.
How do I adjust the spiciness of the salad? You can control the spiciness by adjusting the amount of gochugaru or substituting it with a milder chili pepper.
Fiery Korean Cucumber Salad (Oi Muchim) in 10 Minutes
Aaron and Claire adapted by JojoMThis Fiery Korean Cucumber Salad (Oi Muchim) is a quick, crunchy, and spicy side dish tossed in gochugaru, sesame oil, and vinegar. A refreshing banchan ready in just 10 minutes!

Tools Used
Two Medium Bowls
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Ingredients
Vegetables
Dressing
Instructions
Make the Salad
- 1Cut the cucumber into quarter-inch thick slices. 
- 2Drain and thinly slice the soaked onion. 
- 3Chop the green onions. 
- 4In a bowl, mix all the dressing ingredients until well combined. 
- 5In a separate bowl, combine the cucumber, onion, and green onions. 
- 6Pour the dressing over the vegetables and gently toss until coated. 
- 7Taste and adjust seasoning with salt if needed. 
- 8Let sit a few minutes to let the flavors meld. 
Comments & Reviews
- Sarah L.- 7/2/2023 - I’ve been looking for an easy banchan recipe, and this hit the spot! Perfect balance of spice and tang. 
- Marcus K.- 12/4/2023 - Made this for a BBQ side—super refreshing and everyone loved it. I added a touch more vinegar for extra tang. 
- Jin Soo- 2/6/2024 - Reminds me of my mom’s Oi Muchim. Simple and authentic. I did use Korean cucumber for extra crunch. 
- Helena M.- 5/7/2024 - Great summer salad. Next time I’ll reduce the gochugaru slightly—was a bit spicy for my kids! 
- Peter Y.- 7/9/2024 - Loved how fast this came together. I served it alongside grilled bulgogi and it balanced the flavors perfectly! 
- Aiko T.- 3/11/2025 - I used rice vinegar and a pinch of honey instead of sugar—deliciously bright and tangy! 
- Miguel R.- 7/14/2025 - Refreshing and flavorful! I’ll double the batch next time because it disappears so fast. 
Nutrition Facts
Serving Size: 150g
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.























