Start by thoroughly washing your cucumbers. Slice them thinly using a sharp knife or mandoline for an even texture, aiming for around 1/8 inch thick. Place the slices into a mixing bowl, and for enhanced flavor, sprinkle lightly with salt to draw out moisture. Let them rest for about 10 minutes, then drain any excess water.

In a separate mixing bowl, whisk together soy sauce, sesame oil, rice vinegar, sugar, and optional sesame seeds until well combined. Ensure the sugar dissolves completely.

Pour the prepared dressing over the cucumber slices and add finely sliced scallions. Toss everything together until the cucumbers are evenly coated.

For intensified flavor, transfer the salad to an airtight container and let it chill in the refrigerator for at least 30 minutes before serving.

When ready to serve, present your Japanese Cucumber Salad in a beautiful bowl. Garnish with additional sesame seeds and sliced scallions.