Cucumber sunomono is a refreshing Japanese side dish that perfectly balances sweet and tangy flavors. This simple salad is a great way to cleanse your palate and can be enjoyed as an appetizer or a light snack. The crispness of the cucumbers combined with the delicate dressing makes it an ideal accompaniment to any meal.
Japanese cucumbers are the star of this dish, known for their thin skin and minimal seeds, making them perfect for salads. If you can't find Japanese cucumbers, you can substitute with English cucumbers. Rice vinegar is another key ingredient, providing a mild and slightly sweet acidity. Make sure to use toasted sesame seeds for an added nutty flavor and crunch.

Ingredients for Cucumber Sunomono Recipe
Japanese cucumbers: Thinly sliced for a crisp texture and mild flavor.
Rice vinegar: Adds a mild and slightly sweet acidity to the dish.
Sugar: Balances the acidity of the vinegar with a touch of sweetness.
Salt: Enhances the overall flavor of the salad.
Toasted sesame seeds: Provides a nutty flavor and crunchy texture.
Technique Tip for This Recipe
To achieve perfectly thin slices of cucumber, use a mandoline slicer. This ensures uniform thickness, which helps the vinegar mixture to evenly coat each slice, enhancing the overall flavor and texture of the sunomono.
Suggested Side Dishes
Alternative Ingredients
japanese cucumbers - Substitute with english cucumbers: English cucumbers have a similar texture and mild flavor, making them a good alternative.
japanese cucumbers - Substitute with persian cucumbers: Persian cucumbers are also seedless and have a crisp texture, closely resembling Japanese cucumbers.
rice vinegar - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity and can mimic the tangy flavor of rice vinegar.
rice vinegar - Substitute with white wine vinegar: White wine vinegar has a mild flavor that can be a good stand-in for rice vinegar.
sugar - Substitute with honey: Honey can provide the necessary sweetness with a slightly different flavor profile.
sugar - Substitute with agave syrup: Agave syrup is another sweetener that can replace sugar, offering a similar level of sweetness.
salt - Substitute with soy sauce: Soy sauce can add both saltiness and umami, enhancing the overall flavor.
salt - Substitute with sea salt: Sea salt can be used as a direct replacement, providing the same level of saltiness.
toasted sesame seeds - Substitute with toasted sunflower seeds: Toasted sunflower seeds can offer a similar crunch and nutty flavor.
toasted sesame seeds - Substitute with toasted pumpkin seeds: Toasted pumpkin seeds can provide a similar texture and a slightly different but complementary flavor.
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 flavor.
- Place the container in the refrigerator. The cucumber sunomono can be stored for up to 3 days, but it's best enjoyed within the first 24 hours for maximum freshness.
- If you want to prepare the dish in advance, you can slice the cucumbers and prepare the vinegar mixture separately. Store them in separate containers and combine just before serving.
- Freezing cucumber sunomono is not recommended. The freezing process will alter the texture of the cucumbers, making them mushy and less enjoyable.
- For an extra burst of flavor, you can add a few drops of soy sauce or a sprinkle of red pepper flakes before storing. This will infuse the cucumbers with additional taste as they marinate.
- If you find the cucumbers have released too much water after storing, simply drain the excess liquid before serving to maintain the dish's intended texture and flavor.
- Always use a clean utensil to serve the cucumber sunomono from the storage container to avoid introducing any contaminants that could shorten its shelf life.
How to Reheat Leftovers
- Place the cucumber sunomono in a bowl and let it sit at room temperature for about 10-15 minutes. This allows the flavors to meld and the cucumbers to regain some of their crispness.
- If you prefer a slightly warmer dish, gently heat the cucumber sunomono in a microwave-safe bowl for about 10-15 seconds. Be cautious not to overheat, as the cucumbers can become mushy.
- For a refreshing twist, add a few ice cubes to the bowl and let it chill for a few minutes before serving. This method can help maintain the crisp texture of the cucumbers.
- If you have a vacuum sealer, place the cucumber sunomono in a vacuum-sealed bag and submerge it in warm water (around 100°F or 38°C) for a few minutes. This gentle reheating method helps preserve the texture and flavor.
- Alternatively, you can toss the cucumber sunomono with a bit of extra rice vinegar and toasted sesame seeds just before serving to refresh the flavors.
Best Tools for This Recipe
Knife: To thinly slice the Japanese cucumbers with precision.
Cutting board: Provides a stable surface for slicing the cucumbers.
Mixing bowl: To place the sliced cucumbers and mix them with the vinegar mixture.
Small bowl: For mixing the rice vinegar, sugar, and salt until dissolved.
Measuring cups: To measure the rice vinegar accurately.
Measuring spoons: To measure the sugar, salt, and toasted sesame seeds precisely.
Whisk: To mix the rice vinegar, sugar, and salt until they are fully dissolved.
Tongs: To toss the cucumbers with the vinegar mixture evenly.
Serving dish: To present the cucumber sunomono attractively.
Toaster or skillet: To toast the sesame seeds if they are not pre-toasted.
How to Save Time on Making This Recipe
Use a mandoline: Thinly slice the cucumbers quickly and uniformly with a mandoline.
Pre-mix the dressing: Combine rice vinegar, sugar, and salt ahead of time and store in the fridge.
Toast sesame seeds in bulk: Toast a large batch of sesame seeds and store them for future use.
Chill the cucumbers: Keep cucumbers in the fridge so they are already cold and crisp.
Use a whisk: Dissolve the sugar and salt faster by whisking the dressing.

Cucumber Sunomono Recipe
Ingredients
Main Ingredients
- 2 Japanese cucumbers thinly sliced
- ¼ cup Rice vinegar
- 1 tablespoon Sugar
- ½ teaspoon Salt
- 1 tablespoon Sesame seeds toasted
Instructions
- 1. Thinly slice the cucumbers and place them in a bowl.
- 2. In a separate bowl, mix rice vinegar, sugar, and salt until dissolved.
- 3. Pour the vinegar mixture over the cucumbers and toss to coat.
- 4. Let it sit for at least 10 minutes before serving.
- 5. Sprinkle with toasted sesame seeds before serving.
Nutritional Value
Keywords
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