Fresh Cucumber Sunomono

Featured in: Fresh and Vibrant Salads That Satisfy and Nourish

This cucumber side is a Japanese favorite. Thinly sliced cucumbers are salted to keep them crunchy, then tossed in a tangy mix of rice vinegar, sugar, soy sauce, and a pinch of salt. Let them marinate to soak up flavor, and finish it up with some sesame seeds. It comes together in 15 minutes and tastes even better the next day. It's fresh, healthy, vegan-friendly, and super simple. Plus, it’s low-calorie and dairy-free—great for any meal.
Chef with a smile, ready to cook and serve.
Updated on Fri, 14 Mar 2025 17:59:34 GMT
A bowl of sliced cucumbers sprinkled with sesame seeds on a table. Pin it
A bowl of sliced cucumbers sprinkled with sesame seeds on a table. | yummygusto.com

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.
A bowl of cucumber salad with sesame seeds and a drizzle of oil. Pin it
A bowl of cucumber salad with sesame seeds and a drizzle of oil. | yummygusto.com

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.

A bowl of cucumber slices with sesame seeds on top. Pin it
A bowl of cucumber slices with sesame seeds on top. | yummygusto.com

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.

Japanese Cucumber Sunomono

This tangy salad combines thin cucumber slices with a lightly sweet rice vinegar dressing and a sprinkle of sesame seeds. It's fresh and flavorful.

Prep Time
5 Minutes
Cook Time
10 Minutes
Total Time
15 Minutes
By: Sandra

Category: Healthy Salads

Difficulty: Easy

Cuisine: Japanese

Yield: 2 Servings

Dietary: Low-Carb, Vegan, Vegetarian, Dairy-Free

Ingredients

→ Main Ingredients

01 2 teaspoons salt to pull moisture out
02 3 crisp Persian or Japanese cucumbers

→ Dressing

03 1/5 teaspoon (1.05g) soy sauce
04 1/5 teaspoon (0.65g) salt
05 3/4 teaspoon (2.2g) sesame seeds
06 2.25 tablespoons (31.5g) rice vinegar
07 3/4 tablespoon (10g) sugar

Instructions

Step 01

Use a mandolin or knife to cut the cucumbers into super thin slices. Toss them all into a medium bowl.

Step 02

Scatter 2 teaspoons of salt over the cucumber slices. Use your hands to mix well and coat everything. Let it rest for 10 minutes to get the water out.

Step 03

Thoroughly wash the slices to remove the salt, then shake off the water properly.

Step 04

Grab the cucumber slices and squeeze them hard to push out as much moisture as you can. Don't hold back!

Step 05

Combine soy sauce, sugar, salt, and rice vinegar in a bowl. Stir until the mixture is smooth and everything has dissolved.

Step 06

Pour the dressing over the cucumbers and let them soak in the flavors for at least an hour. For best results, refrigerate overnight.

Step 07

Right before eating, sprinkle some sesame seeds on top for a nutty boost.

Notes

  1. This was updated on 8/30/2023 to tweak cucumber amounts and add seasoning adjustments to cut down on waste and improve precision.

Tools You'll Need

  • Mandolin slicer (useful for consistent slices)
  • Medium-sized bowl for mixing

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Soy (comes from soy sauce)
  • Sesame

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 42
  • Total Fat: 1 g
  • Total Carbohydrate: 8 g
  • Protein: 1 g