Sunomono Cucumber Salad (Japanese Vinegar Cucumber Salad)
This refreshing Sunomono cucumber salad is a traditional Japanese side dish made with crisp cucumbers, rice vinegar, and a touch of sesame. Light, tangy, and ready in minutes.
The Refreshing Japanese Cucumber Salad You Will Make on Repeat
If you have ever sat down at a Japanese restaurant and found yourself reaching for that little dish of cool, tangy cucumbers before anything else arrived, you already know the magic of Sunomono. This traditional Japanese side salad is one of the most elegant, simple dishes in Japanese cuisine, and it takes less than 20 minutes to pull together from start to finish.
Sunomono (literally meaning "vinegared things" in Japanese) is the kind of recipe that works everywhere. It is a beautiful healthy Japanese salad dish to serve alongside grilled fish or teriyaki chicken, a bright and crisp counterpart to heavier mains, and honestly, one of the most satisfying light bites you can make on a warm afternoon. Once you understand the technique, this cucumber Japanese recipe becomes second nature.
Getting this salad right comes down to two things: your cucumbers and your rice vinegar. A quality unseasoned rice vinegar gives you that clean, delicate tang without overwhelming sweetness, and thin-skinned Japanese or Persian cucumbers stay crisp in a way that regular garden cucumbers simply cannot match. Using the right tools, like a sharp mandoline slicer for paper-thin rounds, makes a real difference in the final texture and presentation of this dish.
What Makes This a True Sunomono Cucumber Salad
A lot of cucumber salad recipes float around the internet, but authentic Sunomono salad has a few defining characteristics that set it apart from a basic western-style vinegar slaw.
- Salting and squeezing the cucumbers is non-negotiable. This step pulls out excess moisture so your dressing clings to the cucumber instead of getting diluted in a watery puddle at the bottom of the bowl.
- Rice vinegar is the backbone. Its mild acidity is gentler and more nuanced than white or apple cider vinegar, which is what gives Japanese cucumber salad its signature clean flavor.
- Wakame seaweed is the traditional add-in that turns a simple cucumber salad into a proper restaurant-style sunomono. It is entirely optional, but it adds a beautiful oceanic flavor and a satisfying chew.
- Sesame oil, added at the very end, ties everything together with a subtle nuttiness that you will miss if you skip it.
Chef's Tip: Do not rush the salting step. Ten minutes is the minimum, but if you have time, let the cucumbers sit for up to 20 minutes and squeeze them even more aggressively. The drier your cucumbers go in, the crispier and more flavorful your finished salad will be.
Why This Healthy Japanese Cucumber Salad Fits Any Meal
One of the reasons the cucumber sunomono has remained a staple of Japanese home cooking and restaurant menus for centuries is its versatility. It is cool and acidic, which makes it a natural palate cleanser between bites of richer food. It is also naturally low in calories, gluten-adaptable (simply swap in tamari for soy sauce), and completely plant-based as written.
Serve it as a starter, a side dish, or even a light lunch with a bowl of miso soup. If you are exploring cucumber salad Japanese recipes for the first time, this is the one to start with. It is the most traditional, the most approachable, and the one that will make you look like you really know what you are doing.
Ready to make your own bowl of the best sunomono cucumber salad? Here is everything you need:
Sunomono Cucumber Salad (Japanese Vinegar Cucumber Salad)
This refreshing Sunomono cucumber salad is a traditional Japanese side dish made with crisp cucumbers, rice vinegar, and a touch of sesame. Light, tangy, and ready in minutes.
Ingredients
- 3 Japanese or Persian cucumbers, thinly sliced into rounds
- 1 tsp kosher salt, for drawing out moisture
- 3 tbsp rice vinegar, unseasoned preferred
- 2 tbsp sugar, white granulated
- 1 tbsp soy sauce, low-sodium if preferred
- 1/2 tsp sesame oil, toasted, for finishing
- 1 tsp toasted sesame seeds, for garnish
- 2 tbsp dried wakame seaweed, rehydrated in cold water, optional but traditional
Instruction
Thinly slice the cucumbers into rounds, about 1/8 inch thick. Place them in a colander or bowl, toss with kosher salt, and let sit for 10 minutes to draw out excess moisture.
While the cucumbers rest, whisk together the rice vinegar, sugar, and soy sauce in a small bowl until the sugar fully dissolves. Set the dressing aside.
If using wakame seaweed, soak it in cold water for 5 minutes until rehydrated, then drain and squeeze out excess water.
After 10 minutes, squeeze the salted cucumbers firmly with your hands or press them in a clean kitchen towel to remove as much water as possible. This step is critical for a crisp, non-watery salad.
Combine the squeezed cucumbers and drained wakame (if using) in a bowl. Pour the dressing over and toss well to coat.
Drizzle with sesame oil, toss once more, and let the salad marinate for at least 5 minutes before serving.
Serve chilled or at room temperature, garnished with toasted sesame seeds.
Equipment
- Sharp chef's knife or mandoline slicer
- Colander or mixing bowl
- Small mixing bowl
- Whisk
- Clean kitchen towel or cheesecloth
Notes
Serving, Storing, and Variations
To serve: Sunomono is best served lightly chilled or at room temperature. Pile it into small bowls or plates and finish with a generous pinch of toasted sesame seeds. A few thin slices of imitation crab (kani) or cooked shrimp on top make it feel extra special.
To store: Keep leftovers in an airtight container in the refrigerator for up to 24 hours. The cucumbers will continue to soften as they sit, so for the best texture, this salad is ideally made and eaten the same day.
Variations to try:
- Add thinly sliced radish or daikon for extra crunch
- Stir in a pinch of shichimi togarashi for gentle heat
- Use a splash of mirin in the dressing for a more traditional, slightly richer sweetness
- Top with thinly sliced cooked octopus for a classic Japanese izakaya presentation
This is one of those recipes that earns a permanent spot in your weekly rotation, not because it is complicated, but because it is so reliably good.
