This refreshing Thai cucumber salad is a perfect blend of crisp cucumbers, tangy rice vinegar, and a hint of heat from chili flakes. It's a simple yet flavorful side dish that pairs wonderfully with a variety of main courses, bringing a touch of Thai cuisine to your table.
If you don't usually stock rice vinegar or chili flakes in your pantry, you might need to pick them up at the supermarket. Rice vinegar is a mild, slightly sweet vinegar that is essential for many Asian dishes, while chili flakes add a bit of heat to the salad. Both can typically be found in the international foods aisle.

Ingredients For Thai Cucumber Salad Recipe
Cucumbers: Thinly sliced for a crisp texture.
Red onion: Adds a sharp, tangy flavor.
Fresh cilantro: Provides a fresh, herbaceous note.
Rice vinegar: A mild vinegar that adds tanginess.
Sugar: Balances the acidity of the vinegar.
Salt: Enhances the overall flavor.
Chili flakes: Adds a touch of heat.
Technique Tip for This Recipe
When slicing the cucumbers and red onion, use a mandoline for uniform thin slices. This ensures even absorption of the dressing and a consistent texture throughout the salad. Additionally, after slicing the cucumbers, you can lightly salt them and let them sit for a few minutes before rinsing and patting dry. This step helps to draw out excess moisture, keeping the salad crisp and preventing it from becoming watery.
Suggested Side Dishes
Alternative Ingredients
cucumbers - Substitute with zucchini: Zucchini has a similar texture and mild flavor, making it a good alternative in salads.
red onion - Substitute with shallots: Shallots have a milder taste and a hint of sweetness, which can complement the other flavors in the salad.
fresh cilantro - Substitute with fresh parsley: Fresh parsley provides a fresh, slightly peppery flavor that can replace the herbal notes of cilantro.
rice vinegar - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity and a slightly fruity flavor that works well in salads.
sugar - Substitute with honey: Honey adds sweetness and a bit of complexity to the dressing, balancing the flavors nicely.
salt - Substitute with soy sauce: Soy sauce adds saltiness along with a depth of umami flavor, enhancing the overall taste of the salad.
chili flakes - Substitute with fresh chili: Fresh chili can provide the same heat with a more vibrant and fresh flavor.
Alternative Recipes Similar to This Salad
How to Store or Freeze This Salad
- To store your Thai cucumber salad, place it in an airtight container. This will help maintain its crispness and keep it fresh.
- Keep the container in the refrigerator. The salad will stay fresh for up to 2 days. Beyond this, the cucumbers may start to lose their crunch.
- If you want to prepare the salad in advance, store the dressing separately from the vegetables. Combine them just before serving to ensure the cucumbers remain crisp.
- Avoid freezing the Thai cucumber salad. Freezing can cause the cucumbers to become mushy and lose their texture.
- If you must freeze, consider freezing only the dressing. Store it in a small, airtight container. When ready to serve, thaw the dressing in the refrigerator and then mix it with freshly sliced cucumbers and other ingredients.
- Always use fresh cilantro and red onion when preparing the salad. These ingredients do not freeze well and can lose their flavor and texture.
- For best results, consume the Thai cucumber salad as soon as possible after preparation to enjoy its vibrant flavors and crisp textures.
How to Reheat Leftovers
- While Thai cucumber salad is best enjoyed fresh, if you must reheat it, consider these methods:
- Room Temperature Revival: Remove the salad from the refrigerator and let it sit at room temperature for about 15-20 minutes. This will take the chill off without compromising the crispness of the cucumbers and red onions.
- Quick Warm Water Bath: Place the container of salad (if it's heatproof) in a larger bowl filled with warm water for a few minutes. This gentle method will slightly warm the salad without making it soggy.
- Microwave with Caution: If you prefer a slightly warm salad, microwave it on low power (30-40% power) for 10-15 seconds. Be cautious, as microwaving too long can make the cucumbers limp and the cilantro wilted.
- Stovetop Steam: Place the salad in a heatproof bowl and set it over a pot of simmering water for a minute or two. This indirect heat method will gently warm the salad without cooking it.
- Re-dress and Refresh: If the salad has lost some of its zing, consider making a fresh batch of the dressing (rice vinegar, sugar, salt, and chili flakes) and tossing it with the salad before serving. This can revive the flavors and give it a fresh taste.
Essential Tools for Making This Salad
Mixing bowl: A large bowl used to combine the cucumbers, red onion, and cilantro.
Small bowl: A smaller bowl used to whisk together the rice vinegar, sugar, salt, and chili flakes.
Whisk: A utensil used to mix the dressing ingredients until the sugar is dissolved.
Knife: A sharp tool used to thinly slice the cucumbers and red onion.
Cutting board: A flat surface used to safely chop the vegetables and cilantro.
Measuring cups: Tools used to measure the cucumbers and red onion accurately.
Measuring spoons: Tools used to measure the rice vinegar, sugar, salt, and chili flakes accurately.
Serving bowl: A bowl used to serve the salad once it has been prepared and allowed to sit.
Time-Saving Tips for This Recipe
Pre-slice vegetables: Slice the cucumbers and red onion in advance and store them in the fridge to save time when assembling the salad.
Make dressing ahead: Whisk together the rice vinegar, sugar, salt, and chili flakes and keep it in a sealed container. This way, you can quickly pour it over the salad when needed.
Use a mandoline: A mandoline slicer can help you achieve thin, uniform slices of cucumber and red onion quickly and efficiently.
Batch prep: Prepare a larger batch of the salad and store it in the fridge for a quick side dish throughout the week.

Thai Cucumber Salad
Ingredients
Main Ingredients
- 2 cups Cucumbers, thinly sliced
- ¼ cup Red onion, thinly sliced
- ¼ cup Fresh cilantro, chopped
- 1 tablespoon Rice vinegar
- 1 tablespoon Sugar
- 1 teaspoon Salt
- 1 teaspoon Chili flakes
Instructions
- 1. In a mixing bowl, combine cucumbers, red onion, and cilantro.
- 2. In a small bowl, whisk together rice vinegar, sugar, salt, and chili flakes until sugar is dissolved.
- 3. Pour the dressing over the cucumber mixture and toss to combine.
- 4. Let the salad sit for at least 10 minutes before serving to allow the flavors to meld.
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