Thai Cucumber Salad

This refreshing Thai Cucumber salad is made with sliced cucumbers, red onions, cilantro, mint, peanuts, chili (optional) and tossed with a flavor packed rice vinegar dressing.

When a meal needs something fresh, crunchy, and vibrant to balance richer dishes, this Thai cucumber salad is exactly the answer. Crisp cucumbers are tossed in a bright dressing made with rice vinegar, lime juice, fish (or soy) sauce, and a touch of sugar for a classic Thai balance of sweet, sour, salty, and spicy.

It’s the kind of salad that appears alongside grilled meats and satay across Thailand, offering a cool contrast to smoky or spicy dishes. Best of all, it takes only minutes to prepare and uses simple ingredients that pack a lot of flavor.

Serve it with grilled chicken, sticky rice, or noodles, or keep it in the fridge for a quick, refreshing side on warm days.

Why You’ll Love This Salad

• Fast: ready in about 10 minutes
• Bright and refreshing: perfect beside grilled or spicy dishes
• Crisp texture: cucumbers stay snappy while soaking up the dressing
• Flexible: easy to adjust sweetness, heat, and herbs to taste

Tips for the Best Thai Cucumber Salad

• Slice the cucumbers thinly: Thin slices absorb the dressing quickly while staying crisp.
• Balance the dressing: Thai cooking is all about balance. Taste the dressing before adding it to the salad. You should notice sweet, sour, salty, and spicy elements all at once.
• Add the peanuts at the end: This keeps them crunchy instead of soft.
• Use fresh lime juice: Bottled lime juice won’t give the same bright flavor.

What is fish sauce and why is it used in some Asian cuisines?

Fish sauce is a deeply savory liquid seasoning made from fermented fish and salt. It’s a staple ingredient in many Southeast Asian cuisines and provides the salty, umami backbone in dishes from Thailand, Vietnam, Cambodia, and parts of Laos.

Small fish (often anchovies) are layered with salt and left to ferment in large barrels for months to over a year. During fermentation:

1. The fish break down naturally
2. A clear amber liquid forms
3. That liquid is pressed and bottled as fish sauce

Fish sauce smells strong in the bottle, but in cooking, it is used sparingly to add a deep, savory flavor that balances sweet and sour ingredients. It plays a role similar to:

• soy sauce in Chinese cooking
• anchovies in Italian cooking
• Worcestershire sauce in British cooking (yes, it contains anchovies!)

Peanut allergy? No problem!

If you need a peanut-free version, try toasted sunflower seeds, crispy roasted chickpeas, pumpkin seeds (pepitas), or even fried shallots.  All add a satisfying crunch and flavor.

Variations of this cucumber salad

• Add shredded carrot: For extra color and sweetness.
• Include mango: Thin slices of firm mango add a delicious fruity twist.
• Make it vegetarian: Replace the fish sauce with soy sauce or tamari. You can also find vegan fish sauce sauces made from seaweed and mushrooms.
• Turn it into a heartier salad: Add grilled shrimp or shredded chicken.

What to Serve with Thai Cucumber Salad

In Thailand, cucumber salads are often served alongside grilled meats and satay. The cool cucumbers and bright dressing help balance spicy or rich dishes, making them a refreshing counterpoint to smoky flavors. This refreshing salad pairs beautifully with:

• grilled chicken or pork satay
• Thai fried rice
• noodle dishes
• spicy curries
• grilled seafood

How to store and keep this salad

This salad is best eaten fresh, but it will keep in the refrigerator for up to 24 hours. The cucumbers will soften slightly as they sit, but will still taste delicious.

If making ahead, store the dressing separately and toss just before serving to keep the cucumbers crisp.

Thai Cucumber Salad

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Recipe for Thai Cucumber salad made with sliced cucumbers, red onions, cilantro, mint, peanuts, chili (optional) and a bright rice vinegar dressing.

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Prep Time 10 minutes mins

Chill time – optional 15 minutes mins

Total Time 25 minutes mins

Servings: 4

Course: Salad

Cuisine: Asian, Thai

Ingredients Method

Ingredients

  

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For the salad

• 2 English cucumbers or 4–5 Persian cucumbers, thinly sliced
• ¼ small red onion very thinly sliced
• ¼ cup chopped roasted peanuts
• 2 tablespoons chopped fresh cilantro
• 1 tablespoon chopped fresh mint
• 1 small red chili or Thai bird chili thinly sliced (to taste)

For the dressing

• 3 tablespoons rice vinegar
• 1 tablespoon fresh lime juice
• 1 tablespoon fish sauce or soy sauce see notes
• 1 tablespoon sugar palm sugar or brown sugar preferred
• 1 teaspoon sesame oil
• 1 garlic clove finely minced
• ½ teaspoon grated fresh ginger

Method

 

1. Slice the cucumbers: Thinly slice the cucumbers using a sharp knife or mandoline. If using English cucumbers, there’s no need to peel them.
   
2. Make the dressing: In a small bowl, whisk together the rice vinegar, lime juice, fish sauce, sugar, sesame oil, garlic, and ginger until the sugar dissolves.
   
3. Combine the salad: In a large bowl, toss together the cucumbers and red onion. Pour the dressing over the vegetables and gently toss to coat.
   
4. Let the flavors develop (optional): For the best flavor, let the salad sit for about 10–15 minutes so the cucumbers lightly absorb the dressing.
5. Finish and serve: Just before serving, add the cilantro, mint, chili, and peanuts. Toss lightly.
   
6. Serve chilled or at cool room temperature.
   

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