Spicy Korean Cucumber Salad (Oi Muchim)

4.99 from 60 votes

This post may contain affiliate links which means we may earn a small commission at no extra cost to you. Thank you for your support!

Skip to Recipe Pin Jump to Video

If you’re looking for a quick, flavorful side dish, this spicy Korean cucumber salad (Oi Muchim) is one recipe you’ll want to keep on repeat. Thinly sliced cucumbers are tossed with gochugaru, garlic, green onion, toasted sesame oil, rice vinegar, and sesame seeds for a salad that’s crisp, refreshing, and packed with bold Korean-inspired flavor. It’s naturally gluten-free, vegan, and comes together in just 15 minutes.

Close shot of sliced cucumbers tossed in a red dressing.
Want To Save This Recipe?
Enter your email below & we'll send it straight to your inbox. Plus you’ll get great new recipes from us every week!

A Note From Kristen

I’ve been tweaking this Korean cucumber salad for years, making small adjustments to the dressing until every bite had the balance I was looking for. I wanted plenty of garlic, the nutty richness of toasted sesame oil, enough gochugaru to bring warmth without overwhelming the cucumbers, and just the right amount of tang from the rice vinegar. This is the version I keep coming back to, and I hope you love it as much as we do!
~Kristen

A silver fork holds a cucumber slice coated in chili flakes.

What is Korean Cucumber Salad?

Korean cucumber salad, also known as Oi Muchim (오이무침), is a classic Korean side dish, or banchan, made with crisp cucumbers tossed in a flavorful dressing of gochugaru (Korean chili flakes), garlic, sesame oil, rice vinegar, and sesame seeds. It’s known for its refreshing crunch and the perfect balance of spicy, tangy, savory, and slightly sweet flavors.

Unlike cucumber kimchi, Oi Muchim is not fermented and is meant to be enjoyed fresh. It’s commonly served alongside steamed rice, Korean barbecue, grilled tofu, or other Korean-inspired meals, making it one of the easiest and most popular Korean cucumber recipes to prepare at home.

A wooden spoon rests in a white bowl filled with a cucumber salad.

Key Ingredients

A few quick notes on the ingredients that matter most. Find the full ingredient list and instructions in the recipe card below.

  • Cucumbers: Korean cucumbers are traditional, but Persian cucumbers are my favorite substitute because they have a similar crisp texture and mild flavor. Kirby or English cucumbers also work well.
  • Gochugaru: These Korean red chili flakes add a mild heat and subtle smokiness that’s key to the flavor of this salad. Crushed red pepper flakes can be used in a pinch, but the flavor will be less authentic.
  • Toasted sesame oil: Be sure to use toasted sesame oil rather than regular sesame oil. It adds the rich, nutty flavor that gives this salad its signature taste.
  • Brown rice syrup: Brown rice syrup is closest to traditional Korean rice syrup and provides a gentle sweetness that balances the spicy and tangy flavors. If you don’t have it, honey, maple syrup, or your favorite sweetener will also work well.
A close shot of Korean cucumber salad resting in a large white bowl.

How to Make Korean Cucumber Salad

Cucumber slices topped with pink salt.
Step 1: Slice the cucumbers, toss them with salt, and let them sit for 10 minutes to draw out excess moisture and keep them crisp.
Slices of cucumber in a white bowl with sliced green onions and garlic.
Step 2: Add the minced garlic and sliced green onion.
Cucumber slices topped with red pepper flakes.
Step 3: Sprinkle in the gochugaru (Korean chili flakes).
Slices of cucumber topped with sesame seeds.
Step 4: Add the toasted sesame oil, brown rice syrup, soy sauce, rice vinegar, and toasted sesame seeds.
Cucumber slices topped with various ingredients.
Step 5: Toss everything together until the cucumbers are evenly coated.
A cucumber salad with a vibrant red sauce.
Step 6: Serve immediately or chill for even more flavor before enjoying.

How to Store Spicy Cucumber Salad

Store any leftover Korean cucumber salad in an airtight container in the refrigerator for up to 5 days.

A wooden spoon stick out of an Asian cucumber salad resting in a large white bowl.

My Favorite Ways to Serve

  • Serve as a traditional banchan. Pair it with steamed rice and other Korean side dishes like cucumber kimchi, seasoned bean sprouts, pickled vegetables, sautéed bok choy, or radish salad.
  • Round out a Korean-inspired meal. It’s delicious alongside grilled tofu, my Korean BBQ baked beans, bibimbap, rice bowls, dumplings, or noodles.
  • Add crunch to sandwiches and wraps. Tuck it into veggie wraps, burgers, or my Kimchi Grilled Cheese for a spicy, refreshing bite.
  • Pile it onto tacos or quesadillas. The bright, tangy flavors pair surprisingly well with cheesy dishes!
  • Use it as a topping. Spoon it over pizza, loaded fries, grain bowls, or baked potatoes for an easy burst of flavor.
  • Enjoy it on its own! It’s just as delicious as a light snack straight from the refrigerator.
Close shots of cucumber slices drenched in a red dressing.

My Favorite Variations

  • For a milder salad, reduce the amount of gochugaru.
  • Add more brown rice syrup or your favorite sweetener for a sweeter flavor.
  • Stir in a teaspoon of gochujang for a richer, bolder dressing.
  • Add thinly sliced carrots or radishes for extra crunch!

More Delicious Salad Recipes You Might Enjoy

Korean Cucumber Salad (Oi Muchim)

Author: Kristen Wood
40kcal
Prep 15 minutes
Total 15 minutes
Crisp cucumbers are tossed with gochugaru, garlic, toasted sesame oil, rice vinegar, and sesame seeds to create this quick and refreshing Korean cucumber salad (Oi Muchim). It's naturally vegan, gluten-free, and ready in just 15 minutes!
Servings 4 servings
Course Appetizers, Sides
Cuisine Korean
Diet Gluten Free, Vegan, Vegetarian
Add as a Preferred Source on Google

Ingredients

  • 2 Korean, Kirby or Persian cucumbers thinly sliced
  • ½ teaspoon salt
  • 2 garlic cloves minced
  • 1 green onion, white and green parts thinly sliced
  • 2 teaspoons gochugaru Korean chili flakes
  • 2 teaspoons toasted sesame oil
  • 1 ½ teaspoons brown rice syrup or Korean rice syrup or any sugar/sweetener of choice
  • 1 teaspoon soy sauce or coconut aminos
  • 1 teaspoon rice vinegar
  • ½ teaspoon toasted sesame seeds you can toast raw sesame seeds for a few minutes in a dry skillet over medium heat or buy pre-toasted sesame seeds
Want To Save This Recipe?
Enter your email below & we’ll send it straight to your inbox. Plus you’ll get great new recipes from us every week!

Method

  1. In a mixing bowl, combine the sliced cucumber and salt. Toss to coat, then allow to sit for 10 minutes. After ten minutes, squeeze the cucumbers with your hands and discard all excess liquid.
  2. Add the garlic, onion, gochugaru, sesame oil, brown rice syrup, soy sauce, vinegar and sesame seeds.
  3. Toss to coat and enjoy!
    A close-up image of a dish with sliced cucumbers, chili flakes, and sesame seeds, garnished with a fork on the side.

Notes

Store any leftover Korean cucumber salad in an airtight container in the refrigerator for up to 5 days.
Join Our Free Community! ➜

Nutrition

Serving1servingCalories40kcalCarbohydrates5gProtein1gFat2gSaturated Fat0.3gPolyunsaturated Fat1gMonounsaturated Fat1gSodium395mgPotassium79mgFiber1gSugar3gVitamin A356IUVitamin C2mgCalcium18mgIron0.4mg

Nutritional information is automatically calculated using a third-party calculator and is an estimate only.

Equipment

Have You Tried This Recipe?

Rate and comment below to let us know how it was!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




 

20 Comments

  1. I’ve made what I call Cucumber kimchee for years. I use Any cucumber and garlic and sesame oil and Gochugaru
    We all love it.

  2. 4 stars
    Please sub out the brown rice syrup for any other sweetener (I use honey). Brown rice syrup is really not great for you. Otherwise great recipe!

    1. Hi, Belle! Thank you for stopping by. Yes, brown rice syrup has a high glycemic index, but I wanted to note here that it is a staple in Korean cooking and is used in this specific recipe to hold close to tradition. 🙂 I’m happy you enjoyed it!

  3. 5 stars
    I am a fan of spicy food and so, I had to make this salad immediately! It was super easy to make and took no effort! I ate the whole bowl by myself, it was that good. I served it as a side to stir fry and rice.

  4. 5 stars
    I grow cucumbers and always search for new recipes. This one is a keeper, I love the Korean chili flakes that add a nice spicy kick to the salad.

  5. 5 stars
    I loooved the spicy kick to this recipe, and the whole dish had such amazing authentic flavor. Loved every bite, and so did my guy! Yum!

  6. 5 stars
    Oh I loved this salad. i made for our lunch and everybody. loved it. This inspired me to cook more often Korean food.

  7. 5 stars
    This is my new favourite salad! I have it even for a snack sometimes. It is so easy to make and packs easily for my work lunch.

  8. 5 stars
    Mmm. This sounds fantastic! I mostly use gochugaru on a grilled zucchini recipe we love, but I am so glad to have another great way to use it!

  9. 5 stars
    This was the best version of cucumber salad I have made at home! I usually make a fairly simple version, but it will definitely be getting replaced with this from now on!

  10. 5 stars
    I made this as a side with chicken, bok choy and rice, and it brought everything together! It was just the right amount of spice and flavor, so even my spice-avert husband enjoyed it

  11. 5 stars
    Cucumber salad is always a favorite and I loved this Korean cucumber salad. Love all the flavors and the spicy kick. Yum!

  12. 5 stars
    These are all the flavors I absolutely love! I’m always needing good cucumber recipes as we get so many in the garden, and this is perfect. Thanks!

  13. 5 stars
    I had to get the last few ingredients from my local Asian grocery store but I’m glad I did! I looooved this salad! It was fresh, crunchy, a bit spicy, and tangy. So good!