Oi Muchim is a quick Korean spicy cucumber salad made with fresh cucumbers, onion, gochujang, gochugaru, vinegar, garlic, sesame oil, and sesame seeds.
It is crunchy, spicy, sweet, tangy, and refreshing. This easy Korean cucumber side dish takes only about 10 minutes to make and pairs perfectly with rice, grilled meat, noodles, and Korean stews.
The key to making delicious Oi Muchim is lightly salting the cucumbers first, then squeezing out the excess moisture before mixing them with the sauce. This keeps the cucumbers crisp and prevents the salad from becoming watery.
What is Oi Muchim?
Oi Muchim means Korean seasoned cucumber salad.
The word “oi” means cucumber, and “muchim” refers to a Korean seasoned side dish that is mixed with sauce or seasoning.
Oi Muchim is a popular Korean banchan, or side dish. It is often served with rice, Korean BBQ, grilled fish, spicy stews, and noodle dishes.
Unlike cucumber kimchi, Oi Muchim is usually made quickly and eaten fresh.
Recipe Information
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Total Time: 10 minutes
- Servings: 4
- Difficulty: Easy
- Cuisine: Korean
- Main Ingredient: Cucumber
- Best Served As: Korean side dish
Ingredients
Main Ingredients
- 2 cucumbers
- 1/2 onion
For the Sauce
- 1 tbsp gochujang
- 1 tbsp gochugaru
- 1 tbsp sugar
- 1 tbsp oligosaccharide syrup or corn syrup
- 1/2 tbsp minced garlic
- 1 tbsp soy sauce
- 1.5 tbsp vinegar
- 1 tbsp sesame oil
- 1 tbsp sesame seeds
Ingredient Notes
Cucumber
Use fresh, firm cucumbers for the best crunch.
Korean cucumbers, Persian cucumbers, or English cucumbers all work well.
Onion
Onion adds a light sharpness and sweetness.
Slice it thinly so it blends well with the cucumber.
Gochujang
Gochujang is Korean red chili paste.
It gives the salad a deep spicy and savory flavor.
Gochugaru
Gochugaru adds a bright red color and clean chili flavor.
Using both gochujang and gochugaru gives the sauce better depth.
Vinegar
Vinegar gives this cucumber salad its refreshing tangy flavor.
It balances the sweetness and spice.
Sesame Oil
Sesame oil adds a nutty aroma.
Add it to the sauce for a richer Korean flavor.
How to Make Oi Muchim
Step 1: Slice the Cucumbers
Wash the cucumbers well.
Slice them into round pieces.
Keep the slices thick enough to stay crunchy.
Step 2: Lightly Salt the Cucumbers
Place the sliced cucumbers in a bowl.
Sprinkle a small amount of salt over them.
Let them sit briefly while you prepare the sauce.
This step helps remove excess moisture and gives the cucumbers a better crunchy texture.
Step 3: Make the Sauce
In a mixing bowl, combine:
- 1 tbsp gochujang
- 1 tbsp gochugaru
- 1 tbsp sugar
- 1 tbsp oligosaccharide syrup or corn syrup
- 1/2 tbsp minced garlic
- 1 tbsp soy sauce
- 1.5 tbsp vinegar
- 1 tbsp sesame oil
- 1 tbsp sesame seeds
Mix well until the sauce is smooth and evenly combined.
Step 4: Drain the Cucumbers
Gently squeeze the salted cucumbers to remove excess water.
Do not crush them too hard.
Removing moisture helps the sauce stick better and keeps the salad from becoming watery.
Step 5: Add the Onion
Thinly slice the onion.
Add the onion to the cucumbers.
Step 6: Mix with the Sauce
Add the prepared sauce to the cucumbers and onion.
Mix gently until everything is evenly coated.
Taste and adjust if needed.
If you prefer a more tangy flavor, add a little more vinegar.
If you prefer it sweeter, add a little more sugar or syrup.
Step 7: Serve
Transfer the Oi Muchim to a serving plate.
Sprinkle extra sesame seeds on top if desired.
Serve immediately for the best crunchy texture.
Pro Tips
Salt the Cucumbers Briefly
You do not need to salt them for a long time.
A short salting while preparing the sauce is enough.
Squeeze Out the Water
This is the most important step.
If the cucumbers are too watery, the sauce will become diluted.
Serve Fresh
Oi Muchim tastes best right after mixing.
The cucumbers will continue to release water as they sit.
Slice the Onion Thinly
Thin onion slices mix better with the cucumbers and sauce.
If your onion tastes too strong, soak it briefly in cold water before using.
Adjust the Sweet and Sour Balance
Oi Muchim should taste spicy, sweet, sour, and savory.
Adjust the vinegar and sugar to match your taste.
What to Serve with Oi Muchim
Oi Muchim pairs well with:
- Steamed white rice
- Korean BBQ
- Suyuk
- Bulgogi
- Jeyuk Bokkeum
- Kimchi Jjigae
- Doenjang Jjigae
- Bibim Guksu
- Grilled fish
- Korean fried chicken
It is especially good with rich or spicy Korean dishes because the cucumber adds freshness and crunch.
Storage Tips
Oi Muchim is best eaten fresh.
If you have leftovers, store them in an airtight container in the refrigerator for up to 1 day.
The cucumbers will release more water over time, so the texture may become softer.
For best results, mix the sauce with the cucumbers right before serving.
Frequently Asked Questions
Can I make Oi Muchim ahead of time?
It is best made right before serving.
You can prepare the sauce in advance, but mix it with the cucumbers just before eating.
Do I have to salt the cucumbers?
Salting is recommended because it removes excess moisture and improves the texture.
However, if you are in a hurry, you can skip it and serve the salad immediately.
Is Oi Muchim spicy?
It is mildly to moderately spicy.
You can reduce the gochugaru or gochujang for a milder version.
Can I use English cucumber?
Yes.
English cucumber works well because it has a mild flavor and crisp texture.
Can I make this without gochujang?
Yes, but the flavor will be lighter.
You can use more gochugaru, soy sauce, vinegar, sugar, and sesame oil for a simpler version.
Why did my cucumber salad become watery?
Cucumbers naturally release water.
To prevent this, lightly salt the cucumbers and squeeze out the moisture before mixing with the sauce.
Final Thoughts
Oi Muchim is one of the easiest and most refreshing Korean cucumber side dishes.
With just cucumbers, onion, and a simple spicy sweet-and-sour sauce, you can make a crunchy Korean banchan in only 10 minutes.
The combination of gochujang, gochugaru, vinegar, garlic, sesame oil, and sesame seeds creates a bright and flavorful cucumber salad that goes well with almost any Korean meal.
If you want a quick Korean side dish that is spicy, tangy, sweet, and refreshing, this Oi Muchim recipe is a perfect choice.
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