
Light, crisp, and super refreshing, this classic Japanese cucumber dish brings a splash of sweet tanginess to any meal. The mix of razor-thin cucumber slices with a perfectly balanced vinegar mix makes for a bright side that cleans your taste buds and adds satisfying snap to any Asian dinner.
This salad has turned into our family's favorite side when summer hits. My kids, who normally turn their noses up at veggies, love to help slice the cucumbers and always beg for another helping.
Key Ingredients Breakdown
- Japanese or Persian cucumbers: They give you that must-have crunch and mild taste. Their thin peel and fewer seeds make them soak up the dressing better
- Rice vinegar: Brings a soft tartness you just can't get with regular vinegar. Go for plain unseasoned so you can tweak the final taste
- Pure cane sugar: Works with the acid to make that famous sweet-sour flavor. Don't swap in other sweeteners as they'll change the classic taste
- Sea salt: Pulls out extra water so your salad stays crunchy instead of soggy
Putting Your Dish Together
- First Steps:
- Rinse your cucumbers under cool tap water. Look them over carefully and cut off any bad spots or soft areas.
- Cutting Method:
- Hold your knife at a small angle against the cucumber. Cut super thin slices, trying to keep them all the same thickness. Mind your fingers and keep a steady pace for even pieces.
- Salt Process:
- Toss plenty of sea salt over your cucumber pieces. Softly work the salt into the cucumbers until they start feeling softer in your hands. Let them sit until they release water.
- Making the Mix:
- In another bowl, stir your rice vinegar and sugar until all the sugar melts. The mix should feel smooth between your fingers with no graininess.
- Putting It All Together:
- Press the water out of your cucumbers firmly but carefully. Pour your dressing over them, mixing gently to coat everything evenly.

When I was little, my grandma would make this salad every week in our Japanese home, showing me how important good knife skills and taking your time are for getting that perfect texture.
Great Food Matches
This cool dish goes wonderfully with some grilled fish like mackerel or salmon for a true Japanese meal. It's also great between courses to clean your palate or as a simple lunch topped with some cooked shrimp.
Fun Twists
Switch up this basic dish by mixing in some thin strips of wakame seaweed for an ocean flavor, or add shredded carrots for more color and crunch. If you want protein, try topping it with sesame-coated tofu or some tender chicken breast.
Storage Smarts
Keep your dish in a sealed container in the fridge for up to three days. The cucumbers will get a bit softer but will still taste great. Just drain off any extra liquid before you serve what's left.

After tweaking this dish in my kitchen for years, I've found that making amazing sunomono comes down to keeping the ingredients simple while paying close attention to how you prep everything. This little salad shows that sometimes the simplest foods can bring the most happiness to your table.
Frequently Asked Questions
- → Which cucumbers should I use for this salad?
- Japanese or Persian cucumbers work best because they’re crisp, have thin skin, and aren’t very seedy. English cucumbers can be a decent backup option.
- → What’s the deal with salting cucumbers?
- Salting them helps pull out extra water so they stay crunchy and don’t make the dressing watery. It’s a small step that makes all the difference.
- → How long can this salad stay fresh?
- Stored in the fridge, it’s good for 2-3 days. The flavors actually get even better after sitting for a while.
- → Can this dish be prepped ahead?
- Totally! Make it a day before, but save the sesame seeds for the last minute so they stay crunchy and fresh.
- → Is this salad gluten-free?
- It can be! Swap out soy sauce for tamari or gluten-free soy sauce to make it completely gluten-free.