Quick Japanese Cucumber Salad (Sunomono)
This crisp, cool cucumber salad is the side I reach for when I want something bright and tangy without turning on the stove. Thin slices soak up a sweet-tart dressing with just a whisper of toasted sesame.
It comes together in minutes, so it fits into even the most hurried weeknight routine. Tuck it next to grilled fish or a simple rice bowl and dinner suddenly feels a lot more put together.
What Makes This Salad So Refreshing
The cucumbers stay shatteringly crisp because a quick salt draws out their extra water before the dressing goes on. That tiny step makes the difference between a soggy salad and one that crackles when you bite into it.
The dressing is barely four ingredients, but the balance of sweet rice vinegar and nutty sesame oil tastes like something you’d get at a neighborhood izakaya. It’s the kind of dish that feels effortless but always feels a little special.
Ingredients
- 2 Japanese cucumbers (or 1 English cucumber): look for the ones with tender, unwaxed skin
- 1/2 tsp kosher salt: coarse enough to draw out moisture without over-salting
- 1 tbsp sugar: plain white sugar dissolves most easily
- 2 tbsp unseasoned rice vinegar: gives that clean, mild tang
- 1 tsp soy sauce: a little savory depth
- 1/2 tsp toasted sesame oil: just enough to add warmth
- 1 tsp toasted white sesame seeds: for a nutty finish and a bit of crunch
Variations / Substitutions
- Cucumber swap: if Japanese or English cucumbers are not an option, use 3 to 4 Persian cucumbers and slice them slightly thinner.
- Make it spicy: add a pinch of shichimi togarashi or a small shake of red pepper flakes to the dressing.
- Add seaweed: fold in a tablespoon of rehydrated wakame after tossing the salad for a more classic sunomono feel.
- Lighter dressing: cut the sugar in half or swap it for a teaspoon of honey if you prefer a less sweet finish.
If you like this kind of clean, simple side, you might also enjoy our Quick Miso Soup.
How To Make Japanese Cucumber Salad
Step 1: Salt and Squeeze the Cucumbers
Thinly slice the 2 cucumbers into rounds about 1/8 inch thick. Toss them with the 1/2 tsp salt in a colander set over a bowl and let them sit for 5 to 10 minutes. You will see water pooling in the bowl, and that tells you the salt is doing its job.
Step 2: Whisk the Dressing
In a small bowl, whisk together the 1 tbsp sugar, 2 tbsp rice vinegar, 1 tsp soy sauce, and 1/2 tsp sesame oil until the sugar completely dissolves, about 30 seconds. Taste it now so you can adjust the sweetness or salt while it is still easy to fix.
Step 3: Toss and Finish
Gently squeeze the cucumbers to get rid of any remaining liquid. They will feel floppy but still crisp. Transfer them to a serving bowl, pour the dressing over the top, and toss with your hands or chopsticks until every slice glistens. Sprinkle on the 1 tsp sesame seeds and serve right away.
Tips for Crunchy Cucumber Salad
- Slice evenly: a mandoline or a sharp knife and a steady hand keep the thickness consistent so every piece absorbs the dressing at the same rate.
- Do not shortcut the salting: those 5 to 10 minutes pull out enough water to keep the salad crisp instead of watery. If you skip it, the dressing will slide off into a puddle at the bottom of the bowl.
- Chill the bowl if you can: even 10 minutes in the fridge after tossing lets the flavors settle and the cucumbers stay cold and refreshing.
Scale it for a crowd:
| Servings | Cucumbers | Rice Vinegar | Sugar | Soy Sauce | Sesame Oil |
|---|---|---|---|---|---|
| 2 | 2 | 2 tbsp | 1 tbsp | 1 tsp | 1/2 tsp |
| 4 | 4 | 1/4 cup | 2 tbsp | 2 tsp | 1 tsp |
| 8 | 8 | 1/2 cup | 4 tbsp | 4 tsp | 2 tsp |
Storing Leftovers
- Refrigerate: store any leftovers in an airtight container for up to 1 day. The cucumbers will soften a little as they sit, but the flavor often gets even better. Drain off any excess liquid before serving.
What Goes Well With Japanese Cucumber Salad
This salad is a perfect foil for grilled or broiled fish like miso salmon. It also works alongside a simple teriyaki chicken or tucked into a rice bowl with a soft boiled egg. The clean, vinegary bite cuts through richer dishes without stealing the spotlight.
Frequently Asked Questions
Can I make this ahead of time?
It is best freshly tossed, but you can salt and drain the cucumbers a few hours in advance, then dress them just before serving.
Is this salad vegan?
Yes, it is naturally vegan as long as you stick with the ingredients listed.
Can I add other vegetables?
Absolutely. Thinly sliced radishes, julienned carrot, or rehydrated wakame seaweed all work well.
Why do I need to salt and squeeze the cucumbers?
Salting draws out excess water so the dressing does not get watered down, and it keeps the cucumbers crisp.
Japanese Cucumber Salad Recipe
Ingredients
Method
- Thinly slice the cucumbers, toss with salt in a colander set over a bowl, and let sit for 5 to 10 minutes.
- Whisk together the sugar, rice vinegar, soy sauce, and sesame oil until the sugar dissolves.
- Squeeze excess liquid from the cucumbers, transfer to a bowl, pour over the dressing, toss to coat, and sprinkle with sesame seeds. Serve right away.
