This refreshing Korean cucumber dish combines thinly sliced English cucumbers with a bold dressing of gochugaru (Korean red chili flakes), soy sauce, rice vinegar, and toasted sesame oil. The salt-pressing technique removes excess water, ensuring the vegetables stay crisp while absorbing maximum flavor. Ready in just 10 minutes, this versatile side dish features layers of sweet, spicy, and nutty notes that complement grilled meats, rice bowls, or enjoy it solo as a light snack.
Last summer my neighbor invited me over for Korean BBQ and brought out this bowl of bright red cucumbers. I'd never seen anything like it and honestly I was skeptical about how something so simple could taste good. One bite changed my entire perspective on what a cucumber salad could be. Now I make a batch every week when cucumbers are in season.
My friend Jin showed me her grandmother's trick for getting the cucumbers extra crisp and I've never skipped this step since. She laughed watching me attempt to julienne everything perfectly with my cheap chef knife. Now I just slice them thin and call it a day because honestly the flavors matter more than perfection.
Ingredients
- 2 large English cucumbers: These have thinner skin and fewer seeds but Persian cucumbers work beautifully too
- 2 green onions: Finely sliced adds a mild onion flavor that balances the heat
- 1 ½ tablespoons gochugaru: Korean red chili flakes have a smoky fruity heat you cant substitute with regular red pepper flakes
- 1 tablespoon soy sauce: Use tamari if you need this to be gluten-free
- 1 tablespoon rice vinegar: Adds a gentle tang that cuts through the rich sesame oil
- 1 tablespoon toasted sesame oil: This is non-negotiable for that authentic Korean flavor
- 1 teaspoon sugar: Just enough to round out the sharpness of the vinegar
- 1 teaspoon minced garlic: Fresh garlic makes all the difference here
- ½ teaspoon salt: Essential for drawing out excess water from the cucumbers
- 1 tablespoon toasted sesame seeds: The final touch that adds nutty crunch
Instructions
- Salt the cucumbers:
- Place sliced cucumbers in a bowl sprinkle with salt and toss well. Let them sit for 5 minutes to draw out excess water.
- Drain thoroughly:
- Gently squeeze the cucumbers to remove any remaining liquid. This step is crucial for keeping your salad crisp not watery.
- Whisk the dressing:
- In a large bowl combine gochugaru soy sauce rice vinegar sesame oil sugar and garlic. Stir until the sugar completely dissolves.
- Combine everything:
- Add the drained cucumbers and sliced green onions to the bowl. Toss until every piece is evenly coated with that gorgeous red dressing.
- Finish and serve:
- Transfer to your serving dish and sprinkle with toasted sesame seeds. This is best enjoyed right away while the cucumbers still have their maximum crunch.
This salad became my go-to contribution for potlucks after three different people asked for the recipe at one party. Something about that combination of cool cucumber and spicy dressing makes people keep coming back for just one more bite.
Getting the Right Heat Level
I've learned that everyone's tolerance for gochugaru is different. Start with less if you're unsure. You can always add more but you can't take it back once it's too spicy. The heat mellows slightly after sitting for an hour so keep that in mind.
Make It Your Own
Sometimes I add thin strips of red bell pepper when I want extra color and sweetness. A few shredded carrots work beautifully too. Just keep the proportions similar so the dressing still coats everything properly.
Serving Suggestions
This is the perfect side dish for heavier Korean meals like bulgogi or bibimbap. It cuts through rich flavors and refreshes your palate between bites. I also love it alongside grilled fish or tucked into a rice bowl with a fried egg on top.
- Let it sit for 15 minutes before serving if you prefer softer more infused cucumbers
- Make it fresh right before serving for the best texture
- Double the recipe because it disappears faster than you expect
There's something so satisfying about a recipe that's this simple yet this delicious. I hope this becomes one of your go-to sides too.
Recipe Q&A
- → How long does this keep in the refrigerator?
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This cucumber dish stays fresh for up to 2 days when refrigerated. The cucumbers may release more water over time, so it's best enjoyed immediately for maximum crunch and texture.
- → Can I adjust the spice level?
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Absolutely! The gochugaru amount can be reduced or increased based on your heat preference. Start with less if you're sensitive to spice, then add more to taste. The flavor profile remains balanced regardless of spice level.
- → What type of cucumbers work best?
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Persian cucumbers are ideal for their thin skin and minimal seeds, providing extra crunch. English cucumbers work perfectly too—just peel them if the skin feels thick. Avoid regular garden cucumbers as they have thicker skins and more water content.
- → Is this gluten-free?
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Yes, simply substitute regular soy sauce with tamari or certified gluten-free soy sauce. All other ingredients including gochugaru, rice vinegar, and sesame oil are naturally gluten-free, making this an excellent choice for gluten-free diets.
- → Why salt the cucumbers first?
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Salting draws out excess water from the cucumbers through osmosis, which prevents the dressing from becoming diluted. This crucial step ensures the vegetables stay crisp while allowing them to fully absorb the spicy-sweet flavors of the seasoning mixture.
- → What can I serve this with?
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This versatile side pairs beautifully with Korean BBQ, grilled meats, or rice bowls. It also complements Asian-style noodles, teriyaki dishes, or can be enjoyed on its own as a light, refreshing snack during warm weather.