Creating Japanese Cucumber Salad is straightforward if you follow these simple steps:

1. Slice Cucumbers: Wash the cucumbers and slice them thinly. You can use a mandoline for uniform slices.
2. Salt the Cucumbers: Place the sliced cucumbers in a bowl and sprinkle with salt. Let them sit for about 5 minutes to draw out excess moisture.
3. Prepare the Dressing: In a separate bowl, whisk together rice vinegar, sugar, soy sauce, and sesame oil until the sugar dissolves.
4. Rinse Cucumbers: After 5 minutes, rinse the cucumbers under cold water to remove excess salt. Drain thoroughly.
5. Combine Ingredients: Add the drained cucumbers to the dressing and toss well to coat.
6. Add Sesame Seeds: Sprinkle sesame seeds over the salad and mix gently to combine.
7. Marinate: Allow the salad to marinate for about 5 minutes for the flavors to meld.
8. Serve: Transfer to a serving bowl and garnish with chopped green onions if desired.

These steps will guide you in creating this refreshing salad effortlessly.