Recipe

Japanese Cucumber Salad

Crisp cucumbers tossed in a tangy rice vinegar dressing with sesame, a little sweetness, and just enough salt to make everything pop.

By Matt Campbell

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4.8

A ceramic bowl of Japanese cucumber salad with thin cucumber slices, sesame seeds, and a light vinegar dressing on a bright kitchen counter

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If you have ever wanted a side dish that feels like turning on the AC from the inside, this is it. Japanese cucumber salad is a sunomono-style favorite: crunchy, tangy, lightly sweet, and basically impossible to stop “taste testing” while you are making it.

My version keeps it weeknight-friendly with supermarket ingredients, but still nails the vibe: crisp cucumbers, a clean rice-vinegar bite, a little sugar to round it out, and sesame for that toasty finish. It is the kind of salad that makes heavier mains feel lighter without asking you to do anything dramatic.

Why It Works

Cold and crisp every time: Salting the cucumbers briefly pulls out water so they stay snappy instead of soggy.
Bright, balanced dressing: Rice vinegar plus a touch of sugar and soy creates that sweet-tart harmony that keeps you going back for another forkful.
Fast flavor: A short chill time lets the cucumbers drink in the dressing without turning limp.
Flexible: Add wakame, daikon, or a little crab if you want, but the base recipe is solid all on its own.

Pairs Well With

Storage Tips

Refrigerate: Store leftovers in an airtight container for up to 2 days. It is best on day 1 when the cucumbers are at peak crunch.

Keep it crisp: If you know you will have leftovers, store the cucumbers and dressing separately, then toss before eating. If already dressed, you can drain off excess liquid before serving.

Do not freeze: Cucumbers turn watery and soft after freezing.

Common Questions

Is Japanese cucumber salad the same as sunomono?

Sunomono is a category of Japanese vinegared salads. The cucumber version is the most common, so yes, this is a sunomono-style cucumber salad.

Do I have to use Japanese cucumbers?

Nope. Persian cucumbers are my favorite easy swap because they are thin-skinned and less seedy. English cucumber also works. If you use regular waxy cucumbers, peel them and consider scooping out the seeds.

Should I use seasoned or unseasoned rice vinegar?

Unseasoned rice vinegar is best here. Seasoned rice vinegar already contains sugar and salt, so it can make the dressing taste too sweet or too salty. If seasoned is all you have, cut back the sugar and taste as you go.

Why salt the cucumbers first?

Salt draws out extra moisture, which keeps the salad crunchy and prevents the dressing from getting diluted. Think of it as five minutes of effort for a big texture payoff.

Can I make it ahead?

Yes. For best crunch, prep the cucumbers (slice, salt, rinse, squeeze) up to a day ahead and keep them chilled. Mix the dressing ahead too. Toss together 15 to 30 minutes before serving.

How do I add seaweed like the restaurant version?

Add 1 to 2 tablespoons dried wakame (measured dry, before soaking), then rehydrate and squeeze it dry before tossing it in. A little goes a long way and it expands a lot.

What if it tastes too sharp?

Stir in another pinch of sugar, or add a teaspoon of water to soften the vinegar bite. Also make sure your cucumbers were rinsed after salting so the salt level stays in control.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

Sharp knife or mandoline
Cutting board
Mixing bowl
Fine-mesh strainer or colander
Small bowl or jar for dressing
Clean kitchen towel or paper towels (for squeezing cucumbers)

I love recipes like this because they teach you a tiny technique that pays rent forever. The first time I made cucumber salad the “lazy” way, I skipped salting and wondered why it turned into cucumber soup in the bowl. Once you do the quick salt, rinse, squeeze routine, it clicks. Crunch stays loud, the dressing stays punchy, and suddenly you are the person bringing the refreshingly addictive side dish to every cookout and weeknight dinner.