Cucumber sunomono is a refreshing Japanese side dish that perfectly balances sweet, tangy, and savory flavors. This light and crisp salad is an excellent accompaniment to a variety of meals, offering a delightful crunch and a burst of flavor with every bite. It's simple to prepare and makes for a great appetizer or palate cleanser.
If you're not familiar with Japanese cuisine, you might need to pick up a few specific ingredients for this recipe. Rice vinegar is a mild and slightly sweet vinegar commonly used in Japanese dishes. Soy sauce adds a savory umami flavor, and toasted sesame seeds provide a nutty crunch. These ingredients can typically be found in the international aisle of most supermarkets.

Ingredients for Cucumber Sunomono Recipe
Cucumbers: Thinly sliced for a crisp texture.
Salt: Used to draw out excess moisture from the cucumbers.
Rice vinegar: Provides a mild and slightly sweet tanginess.
Sugar: Balances the acidity of the vinegar.
Soy sauce: Adds a savory umami flavor.
Toasted sesame seeds: Adds a nutty crunch and enhances the overall flavor.
Technique Tip for This Recipe
When slicing the cucumbers, use a mandoline for uniform, paper-thin slices. This ensures even absorption of the vinegar mixture and enhances the overall texture of the sunomono.
Suggested Side Dishes
Alternative Ingredients
thinly sliced cucumbers - Substitute with thinly sliced zucchini: Zucchini has a similar texture and mild flavor, making it a good alternative in salads and pickled dishes.
salt - Substitute with sea salt: Sea salt can provide a slightly different mineral profile and flavor but will still help draw out moisture from the cucumbers.
rice vinegar - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity and sweetness, making it a suitable replacement in pickling recipes.
sugar - Substitute with honey: Honey provides a natural sweetness and can dissolve well in vinegar, offering a slightly different but pleasant flavor profile.
soy sauce - Substitute with tamari: Tamari is a gluten-free alternative to soy sauce with a similar umami flavor, making it a great substitute.
toasted sesame seeds - Substitute with toasted sunflower seeds: Toasted sunflower seeds can provide a similar crunch and nutty flavor, though the taste will be slightly different.
Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
To store your cucumber sunomono, transfer it to an airtight container. This will help maintain its crispness and prevent it from absorbing any unwanted odors from the refrigerator.
Place the container in the refrigerator. The cucumber sunomono can be kept fresh for up to 3 days. Beyond this period, the cucumbers may start to lose their crunch and the flavors might not be as vibrant.
If you want to prepare the cucumber sunomono ahead of time, you can slice the cucumbers and prepare the vinegar mixture separately. Store them in separate containers in the refrigerator. When ready to serve, simply combine them and sprinkle with toasted sesame seeds.
Freezing cucumber sunomono is not recommended. The high water content in cucumbers causes them to become mushy and lose their texture when thawed. This will significantly affect the quality and enjoyment of the dish.
If you have leftover cucumber sunomono and want to repurpose it, consider adding it to a fresh salad or using it as a topping for rice bowls. The tangy and sweet flavors can complement other dishes beautifully.
Always use fresh cucumbers for the best results. If you notice any signs of spoilage, such as a sour smell or slimy texture, it's best to discard the cucumber sunomono to ensure food safety.
How to Reheat Leftovers
Place the cucumber sunomono in a bowl and let it sit at room temperature for about 10-15 minutes to take the chill off. This method helps maintain the crispness of the cucumbers and the integrity of the vinegar mixture.
If you prefer a slightly warmer dish, transfer the cucumber sunomono to a microwave-safe dish. Microwave on low power for 10-15 seconds. Be cautious not to overheat, as this can cause the cucumbers to become soggy.
For a more traditional approach, place the cucumber sunomono in a heatproof bowl and set it over a pot of simmering water for a few minutes. This gentle reheating method helps preserve the texture and flavor of the vinegar mixture and toasted sesame seeds.
Alternatively, you can enjoy the cucumber sunomono cold, straight from the refrigerator. This dish is often served chilled, making it a refreshing side or appetizer.
Best Tools for Making This Recipe
Cutting board: A sturdy surface to safely slice the cucumbers.
Chef's knife: A sharp knife to thinly slice the cucumbers.
Mixing bowl: A bowl to hold the sliced cucumbers and mix them with salt.
Colander: A tool to rinse and drain the salted cucumbers.
Small bowl: A bowl to mix the rice vinegar, sugar, and soy sauce.
Whisk: A utensil to mix the vinegar, sugar, and soy sauce until the sugar dissolves.
Measuring spoons: Tools to measure the salt, sugar, and soy sauce accurately.
Measuring cup: A tool to measure the rice vinegar accurately.
Serving bowl: A bowl to serve the finished cucumber sunomono.
Toaster or skillet: A tool to toast the sesame seeds if they are not pre-toasted.
How to Save Time on Making This Dish
Pre-slice cucumbers: Slice the cucumbers in advance and store them in the fridge to save time when you're ready to make the sunomono.
Use a mandoline: A mandoline slicer can quickly and uniformly slice the cucumbers, making the preparation faster and more efficient.
Pre-mix dressing: Prepare the rice vinegar, sugar, and soy sauce mixture ahead of time and store it in a sealed container in the fridge.
Toast sesame seeds in bulk: Toast a larger batch of sesame seeds and store them in an airtight container for multiple uses.

Cucumber Sunomono Recipe
Ingredients
Main Ingredients
- 2 units Cucumbers thinly sliced
- 1 teaspoon Salt
- ¼ cup Rice Vinegar
- 1 tablespoon Sugar
- 1 teaspoon Soy Sauce
- 1 tablespoon Sesame Seeds toasted
Instructions
- 1. Thinly slice the cucumbers and place them in a bowl.
- 2. Sprinkle salt over the cucumbers and let them sit for 10 minutes. Then, rinse and drain well.
- 3. In a separate bowl, mix rice vinegar, sugar, and soy sauce until the sugar dissolves.
- 4. Add the cucumbers to the vinegar mixture and toss to coat.
- 5. Sprinkle with toasted sesame seeds before serving.
Nutritional Value
Keywords
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