5-Min. Easy Korean Cucumber Salad (Oi Muchim)

Name: 5-min. Easy Korean Cucumber Salad
Prep time: 5 min
Total time: 5 min
Ingredients: 1 English cucumber (or 2 Persian cucumbers); 2 garlic cloves (finely minced); 1 tbsp regular soy sauce (or light soy sauce); 2 tsp gochugaru ((fine Korean red pepper flakes)); 1 tsp white granulated sugar; 2 tsp rice vinegar; 1 tbsp sesame oil (toasted kind); 1 tsp sesame seeds (toasted kind)

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Crisp cucumbers tossed in a sweet, savory, and spicy Korean dressing with a refreshing crunch. This easy Korean cucumber salad recipe is ready in just 5 minutes. I balance the gochugaru with rice vinegar for a delicious spicy kick and tang without overpowering the fresh cucumbers!

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Ingredients & Substitutes
Expert Tips
Instructions
Storage
Variations
Pairing Suggestions
FAQ
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Korean cucumber salad, also known as oi muchim, is a popular Korean side dish (banchan) made with fresh cucumbers tossed in a spicy, tangy dressing. It's commonly served alongside rice and other dishes at Korean restaurants.

Whenever I eat at a Korean restaurant, I always look forward to this cucumber salad as part of the banchan spread. I especially love having a few bites between richer dishes because the cool, crunchy cucumbers balance out the heavier flavors.

When I make this salad at home, I slice the cucumbers evenly so every piece has a satisfying crunch and gets coated in the dressing. I also pat them dry before mixing to prevent excess surface moisture from diluting the dressing.

Ingredients & Substitutes

Exact ingredient amounts are listed in the recipe card at the bottom of this page.

Ingredients for making Korean cucumber salad

English Cucumber: I use English cucumber for its thin skin, fewer seeds, and crisp texture. Persian or mini cucumbers also work well. Avoid thick-skinned varieties unless peeled and deseeded.

Dressing

Fresh Garlic: Freshly minced garlic gives the dressing a pungent, garlicky kick. Jarred minced garlic also works, but its flavor is milder.
Regular Soy Sauce: Light soy sauce or low-sodium soy sauce also works.
Gochugaru: Use fine Korean red pepper flakes for a spicy kick that distributes evenly throughout the dressing. Coarse gochugaru also works but gives the dressing a more textured appearance.
White Granulated Sugar: Balances the heat from the gochugaru and acidity from the rice vinegar.
Rice Vinegar: Apple cider vinegar also works but has a stronger flavor. Avoid white vinegar, which is much sharper.
Toasted Sesame Oil: Gives the dressing its distinctive nutty aroma and flavor.
Toasted Sesame Seeds: If unavailable, toast raw sesame seeds in a dry skillet over medium heat until golden.
Note: Asian ingredients are typically available at most Asian grocery stores or online.

Expert Tips

Slice the cucumbers evenly into ¼-inch-thick rounds so every piece has a consistent crunch.
Pat the cucumbers dry to remove excess surface moisture that can dilute the dressing.
Finely mince the garlic to distribute its pungent flavor without large raw pieces.
Dress just before serving because the salt draws moisture from the cucumbers, making the salad watery over time.

Instructions

Below are instructions on how to make Korean cucumber salad:

English cucumber sliced into even ¼-inch-thick rounds.

Slice the Cucumbers: Trim the ends from the English cucumber and slice into even ¼-inch-thick rounds. Pat the slices dry with paper towels, then transfer to a large bowl.

Spicy red Korean cucumber salad dressing mixed until combined.

Make the Dressing: In a small bowl, combine all the dressing ingredients and whisk until the sugar dissolves.

Korean cucumber salad with sliced cucumbers evenly coated in the spicy dressing.

Dress the Cucumbers: Pour the dressing over the sliced cucumbers and toss until evenly coated with tongs or gloved hands. Serve immediately for the best crunch or chill for 10 minutes before serving.

Storage

Refrigerator: Store leftover Korean cucumber salad in an airtight container in the refrigerator for up to 2 days. The cucumbers will gradually soften and release moisture, so it's best enjoyed fresh.
Freezer: I don't recommend freezing because the cucumbers will become soft and watery after thawing.

Variations

Gluten-Free: Replace the regular soy sauce with gluten-free tamari or gluten-free soy sauce.
Less Spicy: Reduce the gochugaru by half for a milder cucumber salad.

Pairing Suggestions

Serve Korean cucumber salad with:

Bulgogi (Marinated Beef): The cool, tangy cucumbers balance the rich, sweet, and savory beef.
Kimchi Fried Rice: The crisp cucumbers add a refreshing contrast to the warm, spicy rice.
Gyeran Mari (Korean Rolled Omelet): The mild, savory eggs balance the spicy, tangy cucumber dressing.

FAQ

Why did my Korean cucumber salad turn watery?

The salt in the dressing draws moisture from the cucumbers over time. For the best crunch, pat the cucumber slices dry before mixing and serve immediately or after a brief 10-minute chill.

Can I make Korean cucumber salad ahead of time?

Yes! Prepare the dressing up to 1 day ahead and refrigerate it in an airtight container. Keep the cucumber whole until ready to serve, then slice, pat dry, and toss with the dressing.

Do I need to salt the cucumbers first?

No, you can skip salting the cucumbers for this quick version. Salting helps draw out excess moisture, but it's not necessary when serving the salad immediately or after a brief chill. Skipping this step saves time while preserving the cucumbers' fresh crunch.

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