Sunomono (Japanese Cucumber Salad)
This refreshing Sunomono Japanese Cucumber Salad comes together in under 10 minutes with just a handful of pantry staples — crisp cucumbers, tangy rice vinegar, and a touch of soy sauce make this the most addictive healthy Japanese salad dish you’ll ever make.
Okay, true confession: I used to order Sunomono at every single Japanese restaurant just so I could reverse-engineer it at home. There’s something about that cool, lightly tangy cucumber that makes every meal feel instantly fancier. Once I finally cracked the code, I started making it weekly — and honestly, it disappears faster than I can plate it.
Table of Contents
What Makes This Sunomono So Good
This is one of those recipes where simplicity is the whole point. You’re not cooking anything, you’re not hunting for obscure ingredients, and the whole thing takes maybe 10 minutes start to finish.
What you get is a crisp, refreshing, lightly sweet-and-tangy traditional Japanese side salad that pairs beautifully with just about anything — grilled chicken, sushi, or even a cozy bowl of rice. It’s light, it’s bright, and it’s the kind of side dish that makes people ask “wait, you made this?”
Think of it as the palate-cleansing hero your dinner table didn’t know it needed. If you love easy Japanese-inspired dishes, you’ll also want to check out these sticky teriyaki chicken rice bowls that pair beautifully with this salad.
If you think cucumbers are just a boring side ingredient, think again. From tangy Japanese Sunomono to creamy American-style cucumber salads, there’s a whole world of refreshing, crunchy, flavor-packed dishes waiting to be discovered.
👉 Explore the full collection here: The Ultimate Guide to Cucumber Salads
Ingredients You’ll Need
The beauty of this healthy Japanese cucumber salad is that the ingredient list is gloriously short. No weird specialty items, no tracking down obscure sauces — just clean, simple flavors that let the cucumber shine.
| Category | Ingredient | Amount |
|---|---|---|
| Produce | Japanese cucumber (see Note 1) | 1 large |
| Seasoning | Sea salt | 1 teaspoon |
| Dressing | Rice wine vinegar | 2 tablespoons |
| Dressing | Sugar | 1 tablespoon |
| Dressing | Soy sauce | 1 teaspoon |
| Dressing | Toasted sesame seeds | 1 teaspoon |
Note 1: Japanese cucumbers are thinner, less watery, and have a more delicate skin than regular cucumbers — no peeling needed! Persian cucumbers work great as a substitute if you can’t find them.
How to Make Sunomono (Japanese Cucumber Salad)
Three steps. That’s it. I promise this is easier than it sounds, even if you’ve never made a traditional Japanese side salad before.
Step 1: Prep the Cucumbers
Grab your mandoline and slice those cucumbers paper-thin. We’re talking translucent, almost see-through slices — that’s the signature look of a proper Sunomono.
Don’t have a mandoline? A sharp knife works too, just take your time. Once sliced, toss the cucumbers with your sea salt and let them hang out for 3 to 6 minutes. The salt is doing the hard work here, pulling out the excess moisture so your salad doesn’t turn into a watery puddle.
“The thinner the slice, the better the texture. Aim for slices you can almost see through — they’ll soak up that dressing like a dream.”
Step 2: Squeeze Out the Moisture
After resting, grab the cucumbers and give them a firm squeeze — you’ll be surprised how much water comes out! This step is what keeps your healthy Japanese salad dish crisp instead of soggy.
Give one slice a little taste. If it feels too salty, give them a quick rinse under cold water and squeeze again. If the salt level feels right, you’re good to go as-is. Trust your taste buds here.
Step 3: Make the Dressing
In a small bowl, combine the rice wine vinegar, sugar, soy sauce, and toasted sesame seeds. Whisk it together until the sugar fully dissolves — this only takes about 30 seconds.
The dressing smells incredible, by the way. That combination of tangy vinegar and toasty sesame is basically the aroma of every great Japanese restaurant you’ve ever been to. You’ll want to bottle this stuff.
Step 4: Toss and Serve
Add the squeezed cucumbers to your dressing and toss to coat. Every slice should be glistening and glossy with that sweet-tangy dressing.
Serve immediately for the freshest crunch, or pop it in the fridge for 20–30 minutes if you prefer it cold. Both ways are completely delicious. Honestly, I usually eat a few slices straight from the bowl before it even makes it to the table.
Expert Tips for the Best Sunomono
Nail the Cucumber Choice
Japanese or Persian cucumbers are your best friends here. They have thinner skins, fewer seeds, and much less water content than English or regular garden cucumbers.
If you do use a regular cucumber, peel it first and scoop out the seeds with a spoon. It’ll still work, but the texture won’t be quite as silky.
Don’t Skip the Salting Step
I know it’s tempting to rush past the salting part, but please don’t. This step is what separates a crispy, restaurant-quality Sunomono from a sad, watery one.
Even just 3 minutes makes a noticeable difference. And if your cucumbers are on the thicker side, give them the full 6 minutes to really let the salt do its job.
Adjust the Dressing to Your Taste
Love it tangier? Add an extra splash of rice wine vinegar. Prefer it sweeter? A tiny bit more sugar does the trick. This healthy Japanese cucumber salad is very forgiving.
You can also swap regular sugar for honey or a sugar alternative if you’re watching your sugar intake. The flavor profile stays pretty much the same.
Variations Worth Trying
This is a great base recipe, but there are so many fun ways to riff on it. Try adding thin slices of radish for extra crunch and a pop of color — it’s stunning on the plate.
Wakame seaweed is a super traditional addition if you can find it at your local Asian grocery store. It adds a beautiful briny depth to the salad. Some people also like to add a few drops of sesame oil for a richer, nuttier flavor.
For a more filling version, toss in some cooked shrimp or crab sticks — suddenly your traditional Japanese side salad becomes a light lunch. And if you’re after more easy veggie sides, these crispy smashed carrots and smothered green beans are equally crowd-pleasing.
Troubleshooting Common Issues
Salad turned watery: You probably didn’t squeeze the cucumbers firmly enough after salting. Next time, really wring them out like a sponge — don’t be shy!
Too salty: Give the cucumbers a rinse under cold water after the salting step and taste again before adding dressing.
Dressing not dissolving: The sugar can be stubborn in cold liquid. Whisk a little more vigorously, or warm the vinegar slightly before mixing.
Storage Instructions
Sunomono is best eaten fresh, but here’s how to handle leftovers if you somehow manage to have any.
| Storage Method | Duration | Notes |
|---|---|---|
| Refrigerator (dressed) | Up to 1 day | Cucumbers will soften slightly but still taste great |
| Refrigerator (undressed) | Up to 2 days | Store cucumbers and dressing separately for best texture |
| Freezer | Not recommended | Cucumbers become mushy when frozen and thawed |
Reheating: No reheating needed — Sunomono is always served cold or at room temperature.
No-waste tip: Got leftover dressing? It makes a fantastic marinade for chicken or a light dipping sauce for spring rolls. Don’t pour it down the drain!
Nutritional Information
Per serving (recipe makes 4 servings). This is an estimate and can vary based on exact ingredients used.
| Nutrient | Per Serving |
|---|---|
| Calories | ~30 kcal |
| Carbohydrates | ~6g |
| Protein | ~1g |
| Fat | ~0.5g |
| Sodium | ~250mg |
| Sugar | ~4g |
| Fiber | ~0.5g |
At around 30 calories per serving, this healthy Japanese salad dish is one of those rare things that’s both genuinely delicious AND something your body will thank you for.
Frequently Asked Questions
What kind of cucumber is best for Sunomono?
Japanese cucumbers are the most traditional choice — they’re slim, have thin skin, minimal seeds, and a delicate crunch. Persian cucumbers are a great substitute. If you’re using a standard garden cucumber, peel it and scoop out the seeds first for a similar texture.
Can I make Sunomono ahead of time?
You can prep the components ahead, but I’d recommend storing the cucumbers and dressing separately until you’re ready to serve. Once dressed, the cucumbers start to release liquid and soften within a few hours. For the crispest result, toss everything together right before eating.
Is Sunomono gluten-free?
Traditional Sunomono uses soy sauce, which contains gluten. To make this a gluten-free recipe, simply swap in tamari or coconut aminos — the flavor is almost identical. If you’re cooking for someone with a gluten intolerance, you might also love these fluffy gluten-free pancakes for a complete gluten-free meal lineup.
What can I serve with Sunomono?
This traditional Japanese side salad is incredibly versatile. It’s classically served alongside sushi, sashimi, or Japanese rice dishes. But it also works beautifully next to grilled fish, teriyaki chicken, or even as a light appetizer before a bigger meal. The cool, tangy flavor refreshes the palate perfectly between bites.
Can I add other vegetables or proteins?
Absolutely! Thinly sliced radishes, wakame seaweed, or even shredded carrots are all common additions to this healthy Japanese cucumber salad. For protein, cooked shrimp or crab sticks are traditional mix-ins that make it more substantial. You can also serve it alongside crowd-pleasing appetizers like mini Caprese skewers or spinach and feta pinwheels for a full spread.
Give This Recipe a Try!
If you’ve been sleeping on Sunomono, I really hope this recipe is your wake-up call. It’s fast, it’s fresh, it’s practically effortless — and it makes literally any meal feel a little more special.
Whether you’re serving it as a traditional Japanese side salad at a dinner party or just making it for a quiet weeknight meal, I promise it’ll become a regular in your rotation. Don’t be surprised when your family starts requesting it every single week.
Made this recipe? I’d absolutely love to hear how it turned out! Drop a comment below with your thoughts, tips, or any fun variations you tried. And if you loved it, please save it to your Pinterest boards so more people can discover this little gem of a salad. Sharing is caring, and honestly, the world needs more Sunomono in it.
Looking for more easy recipes to round out your table? These Italian pinwheels and a slice of lemon pound cake for dessert make one seriously impressive spread with almost zero effort.
Sunomono (Japanese Cucumber Salad)
Equipment
- Mandoline
- Mixing bowl
- Whisk
Ingredients
Cucumber
- 1 large Japanese cucumber Persian cucumbers work as a substitute. If using a regular cucumber, peel it and scoop out the seeds first.
- 1 tsp sea salt
Sunomono Dressing
- 2 tbsp rice wine vinegar
- 1 tbsp sugar Can substitute honey or a sugar alternative.
- 1 tsp soy sauce Use tamari or coconut aminos for a gluten-free version.
- 1 tsp toasted sesame seeds
Instructions
- Use a mandoline to thinly slice the cucumbers into almost translucent rounds. Toss the sliced cucumbers with sea salt and let stand until the moisture is drawn out, about 3 to 6 minutes depending on thickness.
- Firmly squeeze out the excess moisture from the cucumbers — you’ll be surprised how much water comes out. Taste a slice; if it’s too salty, rinse the cucumbers under cold water and squeeze again. Otherwise, leave them as is.
- Combine the rice wine vinegar, sugar, soy sauce, and toasted sesame seeds in a bowl. Whisk until the sugar fully dissolves, about 30 seconds.
- Toss the squeezed cucumbers with the dressing until every slice is evenly coated. Serve immediately for the freshest crunch, or refrigerate for 20–30 minutes and serve chilled. Enjoy!
