Korean Cucumber Salad Recipe (Easy Oi Muchim)

You bite into a slice of cucumber, and instead of the usual watery crunch, you get something completely different: cold, crisp, tangy, with just enough heat to make you reach for another bite. That first taste is usually what turns people into lifelong fans of Korean cucumber salad, known in Korean as oi muchim.

Many people don’t realize how easy this dish is to make at home. Most recipes online skip one small step, which is exactly why homemade cucumber salad so often ends up watery by the time it hits the table. That one step is the difference between a soggy side dish and the crunchy banchan you get at your favorite Korean BBQ spot.

In this guide, you’ll learn the real technique behind authentic oi muchim, the ingredients that make it taste right, the mistakes that ruin the texture, and how to adjust the spice level. It takes about 10 minutes of hands-on time, and no special equipment.

What Is Korean Cucumber Salad?

Korean cucumber salad, or oi muchim (오이무침), is a type of banchan, the small side dishes served alongside rice at nearly every Korean meal. “Oi” means cucumber, and “muchim” refers to a dish that’s been seasoned and tossed by hand rather than cooked.

Unlike a typical Western cucumber salad, oi muchim leans into bold, contrasting flavors: tangy from rice vinegar, savory from soy sauce, a touch sweet, and often spicy from gochugaru, the coarse Korean red pepper flakes known for a smoky, fruity heat that’s different from regular chili powder.

You’ll usually see it served cold, next to grilled meat at Korean BBQ, alongside rice, or as part of a larger banchan spread with dishes like kimchi. It works almost like a palate cleanser, cutting through richer foods with something crisp and bright.

At EatLikeFit, we love recipes like this because they prove healthy food doesn’t have to be complicated. A handful of ingredients and ten minutes is really all it takes.

Why You’ll Love This Recipe

• Fast. About 10 minutes of hands-on work.
• Light. Pairs well alongside heavier dishes like Korean BBQ or fried rice.
• Customizable. More gochugaru for heat, or skip it for a mild version.
• No cooking required. A good pick for hot days.
• Stays crunchy. Once you learn the salting trick, no more watery cucumber salad.

Ingredients

• 2 large English (seedless) cucumbers, or 6 to 7 Persian cucumbers
• 1 teaspoon fine sea salt, for salting the cucumbers
• 2 tablespoons soy sauce (tamari for gluten-free)
• 1 tablespoon rice vinegar (white vinegar works in a pinch)
• 1 to 2 teaspoons gochugaru (Korean red pepper flakes), to taste
• 1 teaspoon granulated sugar or honey
• 2 cloves garlic, minced
• 1 teaspoon toasted sesame oil
• 1 tablespoon toasted sesame seeds
• 2 green onions, thinly sliced
• Optional: 1/4 small red onion, thinly sliced

Ingredient Notes

Cucumbers: English or Persian cucumbers work best because their skin is thin and seeds are small, so there’s no need to peel or seed them. Regular garden cucumbers should be peeled and seeded first, or the salad turns watery no matter how well you salt it.

Gochugaru: This gives oi muchim its signature color and flavor. It’s coarser than standard chili powder, with a milder, smoky, fruity heat. Find it at Asian grocery stores or online. In a pinch, paprika with a small pinch of cayenne comes close, though the flavor won’t match exactly.

Soy sauce: Regular soy sauce works fine, but low-sodium cuts the salt without changing the flavor much. Tamari is a good gluten-free swap.

Sesame oil: Toasted sesame oil has a nutty aroma that plain sesame oil doesn’t, so don’t swap the two.

Sugar: This isn’t meant to make the salad sweet, it just balances the vinegar and soy sauce, the way a pinch of sugar rounds out a vinaigrette.

Related: Cucumber Tomato Onion Salad

How to Make Korean Cucumber Salad

Step 1: Slice and Salt the Cucumbers

Trim the ends and slice the cucumbers into thin rounds, about 1/8 inch thick. Place them in a colander over a bowl, sprinkle with salt, and toss gently. Let sit 10 to 15 minutes. This step is often skipped, but it’s what pulls excess water out so the finished salad stays crisp.

Step 2: Drain and Pat Dry

Press the cucumbers gently with your hands or a towel to squeeze out the liquid, then pat dry with paper towels. Don’t rinse them, a light coating of salt is already part of the seasoning.

Step 3: Mix the Dressing

Whisk together the soy sauce, rice vinegar, gochugaru, sugar, garlic, and sesame oil in a small bowl until the sugar dissolves. Taste it. It should be a little strong on its own, since it’s about to be diluted by the cucumbers.

Step 4: Toss the Cucumbers in the Dressing

Add the drained cucumbers to a large bowl and pour the dressing over them. Toss gently with your hands or tongs until every slice is coated. Avoid over-mixing, which can bruise the cucumbers.

Step 5: Finish and Serve

Sprinkle the sesame seeds and green onions on top and toss once more, lightly. Serve right away, or chill 10 to 15 minutes to let the flavors settle. Add the red onion right before serving so it stays crisp.

Common Mistakes to Avoid

• Skipping the salting step. The number one reason homemade cucumber salad turns watery.
• Slicing too thick. Thick rounds don’t absorb the dressing well. Keep slices thin and even.
• Using thick-skinned, seedy cucumbers. They throw off the texture. English or Persian hold up better.
• Dressing it too early. More than 30 minutes before serving, and the cucumbers release more water and lose crunch.
• Adding extra salt on top of the dressing. Soy sauce already brings plenty of sodium, so taste first.

Expert Tips

• Chill your serving bowl in the freezer for a few minutes before plating, especially for a BBQ or potluck.
• Toast raw sesame seeds in a dry pan for 2 to 3 minutes for a noticeably better flavor.
• Make the dressing first, then slice the cucumbers, so the salt has time to work while you prep.
• Prepping ahead? Keep the cucumbers and dressing in separate containers and combine right before eating. One small habit like this makes a real difference in how long the crunch lasts.

Recipe Variations

• Spicy: Add an extra teaspoon of gochugaru, or a spoonful of gochujang for deeper heat.
• Mild or kid-friendly: Cut the gochugaru in half, or leave it out.
• Vegan: Already vegan as written, as long as you use sugar instead of honey.
• Extra crunch: Add thinly sliced carrots or radish.
• Lower sodium: Use low-sodium soy sauce, reduce slightly, and add a splash of water or vinegar.

If you enjoy cold, crunchy cucumber dishes, our Thai Cucumber Salad leans into lime and peanuts instead of soy and sesame. For more plant-based sides, check our Vegan Salad Recipes collection.

Serving Suggestions

Korean cucumber salad is traditionally banchan, meant to be eaten alongside other dishes. It fits well:

• Next to grilled meat at a Korean BBQ spread
• Alongside steamed rice and kimchi
• As a topping for rice bowls or bibimbap
• Next to spicy dishes, where the cold crunch balances the heat
• As a light side for grilled chicken, salmon, or tofu

It also works outside a Korean-themed meal, much like a classic coleslaw or our Japanese Cucumber Salad, as a cold side for burgers or a simple summer dinner.

Is Korean Cucumber Salad Healthy?

Cucumbers are mostly water, which keeps this dish naturally low in calories while still adding volume and crunch. They also contain small amounts of vitamin K, potassium, and antioxidants. Garlic and sesame seeds add their own benefits too, including compounds that research suggests may support heart health, though a side dish like this isn’t a major source of any single nutrient on its own.

Approximate values per serving, about 1 cup:

These numbers shift depending on how much soy sauce and sugar you use, so plug your exact ingredients into a nutrition calculator for a more precise count.

Curious how a homemade side compares to what you’d get eating out? See our breakdown of Is Salad and Go Healthy?

A Quick Note on Sodium and Allergies

• Sodium sensitivity or high blood pressure: Soy sauce is the main sodium source here. Low-sodium soy sauce and a smaller portion help this fit your routine.
• Soy or sesame allergies: Both are common allergens. Coconut aminos can replace soy sauce; sesame oil is harder to substitute.
• Kidney conditions: If you follow a sodium- or potassium-restricted diet, check with your doctor or a registered dietitian before making sodium-forward sides a regular habit.

If you have a chronic health condition and aren’t sure how a dish like this fits your diet, a quick conversation with your doctor or a registered dietitian is always worth having.

Storage Instructions

Best within the first day, while the cucumbers are still crisp. Store leftovers in an airtight container in the fridge for up to 2 days. By day 2 or 3, the cucumbers keep releasing water and lose crunch, though the flavor often still holds up if you drain the extra liquid first. This salad doesn’t freeze well. For a gathering, dress it no more than 30 minutes before serving.

Make It a Regular Habit

• Prep a batch of salted, drained cucumbers on a Sunday, then dress small portions through the week.
• Swap chips or crackers for a small bowl of this salad as an afternoon snack.
• Pair it with a protein like grilled chicken or tofu for a simple dinner.

For more easy sides, see our Salad Meal Prep Ideas guide. And if you like recipes that make the most of what’s already in your kitchen, our Apple Peel Recipe for Weight Loss is another reader favorite.

Helpful EatLikeFit Tools

• Recipe Converter Calculator: Scales any recipe’s ingredients up or down, handy for doubling this salad for a BBQ or halving it for a solo dinner.
• Recipe Cost Calculator: Estimates what a recipe costs per serving, useful for comparing homemade dishes to takeout.
• Reverse BMI Calculator: Helpful if you’re working toward a weight goal as part of a broader, sustainable eating pattern, alongside food choices like this one.

FAQs

Final Thoughts

Korean cucumber salad proves healthy eating doesn’t have to mean sacrificing flavor or spending hours in the kitchen. Once you learn the salting trick, you’ll have a crunchy, restaurant-quality side dish ready in about 10 minutes, adjustable to whatever spice level you’re in the mood for.

Try it next time you’re making Korean BBQ at home, need a fast side for grilled meat, or just want a light, refreshing snack. Once you taste the difference proper salting makes, you probably won’t go back to the soggy version.

Korean Cucumber Salad (Oi Muchim)

A cold, crunchy Korean side dish made by salting cucumbers to remove excess water, then tossing them in a tangy, savory, slightly spicy soy-sesame dressing. Ready in about 10 minutes with no cooking required.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

10 minutes mins

Total Time 25 minutes mins

Course Side Dish

Cuisine Korean

Servings 4 people

Calories 80 kcal

Equipment

• Colander
• Mixing Bowl
• Small bowl
• Sharp knife or mandoline

Ingredients

  

• 2 large English seedless cucumbers or 6–7 Persian cucumbers
• 1 tsp fine sea salt for salting the cucumbers
• 2 tbsp soy sauce use tamari for gluten-free
• 1 tbsp rice vinegar white vinegar works in a pinch
• 2 tsp gochugaru Korean red pepper flakes adjust to taste
• 1 tsp granulated sugar or honey
• 2 cloves garlic minced
• 1 tsp toasted sesame oil
• 1 tbsp toasted sesame seeds
• 2 green onions thinly sliced
• 1/4 small red onion thinly sliced optional, for extra crunch

Instructions

 

• Slice and Salt the Cucumbers — Trim the ends and slice into thin rounds, about 1/8 inch thick. Place in a colander over a bowl, sprinkle with salt, toss gently, and let sit 10 to 15 minutes.
• Drain and Pat Dry — Press the cucumbers gently to squeeze out liquid, then pat dry with paper towels. Don't rinse.
• Mix the Dressing — Whisk together the soy sauce, rice vinegar, gochugaru, sugar, garlic, and sesame oil until the sugar dissolves.
• Toss the Cucumbers in the Dressing — Add the drained cucumbers to a large bowl, pour the dressing over, and toss gently until coated.
• Finish and Serve — Sprinkle with sesame seeds and green onions, toss lightly, and chill 10 to 15 minutes before serving. Add red onion just before serving.

Video

Notes

Store leftovers in an airtight container in the fridge for up to 2 days; texture is best within the first day. Doesn’t freeze well. For a lower-sodium version, use low-sodium soy sauce. Contains soy and sesame — not suitable for those with soy or sesame allergies.

 

 

 

Keyword cucumber salad, Korean side dish, oi muchim

Muhammad Ahtsham

Muhammad Ahtsham is the founder of EatLikeFit.com and a nutrition researcher dedicated to healthy weight management. He provides practical, science-backed advice on high-protein diets and affordable meal planning to help readers achieve their fitness goals simply and effectively.