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Easy & Refreshingly Quick Korean Cucumber Salad (Oi Muchim)

This Korean Cucumber Salad, or Oi Muchim, is a secret weapon – simple ingredients, minimal effort, and maximum flavor. Cool, crisp cucumber with a perfect balance of spicy, tangy, and savory, it's a little burst of sunshine for your plate.
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Prep Time 10 minutes
Total Time 20 minutes
Servings: 4 servings
Course: Salad, Side Dish
Cuisine: Korean
Ingredients Equipment Method Notes

Ingredients
  

  • 2 large cucumbers preferably English or Persian, thinly sliced
  • 1 tsp salt
For the Dressing
  • 1 tbsp rice vinegar
  • 1 tbsp soy sauce Use low-sodium if watching salt intake
  • 1 tsp gochugaru Korean red pepper flakes, adjust to 1-2 tsp or more for spice level
  • 1 tsp sugar
  • 2 cloves garlic minced
  • 1 tsp sesame oil toasted sesame oil
  • 1 green onion finely chopped
  • 1 tsp toasted sesame seeds for garnish

Equipment

  • Medium-sized bowl
  • Smaller bowl
  • Paper Towels
  • Spoons or tongs

Method
 

  1. Step 1: Prep the Cucumbers: Place thinly sliced cucumbers in a medium-sized bowl. Sprinkle with 1 teaspoon of salt and toss to coat. Let them sit for about 10 to 15 minutes to draw out excess water.
  2. Step 2: Drain & Dry: Gently grab handfuls of the cucumbers and squeeze over the bowl to remove as much liquid as possible. Transfer the squeezed cucumbers to a clean bowl or plate lined with paper towels and pat them dry with more paper towels.
  3. Step 3: Whip Up the Dressing: While the cucumbers are draining, whisk together the rice vinegar, soy sauce, gochugaru (adjust to your spice preference), sugar, minced garlic, and sesame oil in a separate, smaller bowl until well combined. Taste and adjust seasonings if needed.
  4. Step 4: Combine Everything: Add the drained, patted-dry cucumbers and the chopped green onion to a clean bowl. Pour the dressing over the cucumbers and green onion. Gently toss everything together until all the cucumber slices are evenly coated in the dressing.
  5. Step 5: Let Flavors Marry & Serve: Let the salad sit for at least 10 minutes before serving to allow the flavors to meld. If possible, let it sit for 20-30 minutes for even better flavor. Give it a final gentle toss, garnish with toasted sesame seeds, and serve immediately.

Notes

Substitutions & Additions: You can swap rice vinegar for apple cider vinegar (use less and taste), adjust gochugaru for spice or substitute with a pinch of cayenne and paprika, use tamari or coconut aminos for a gluten-free option. Add thinly sliced carrots, daikon radish, or bell pepper. Toss in cooked shrimp or chicken for an entree. Add a tiny pinch of grated fresh ginger to the dressing.
Tips for Success: Use English or Persian cucumbers for best results. Do not skip the salting and squeezing step to prevent a watery salad. Taste and adjust the dressing before adding cucumbers. Letting the salad rest for 10-30 minutes enhances the flavor.
How to Store It: Store leftovers in an airtight container in the refrigerator for up to 2-3 days. The cucumbers may soften slightly over time, but the flavor often improves on the second day. For partial make-ahead, prepare and store cucumbers and dressing separately, combining about 30 minutes before serving.