Start by rinsing the cucumbers and slicing off one end. Slice them at an angle so the pieces are oval-shaped. This not only looks appealing but also helps the cucumber soak up the dressing better.
Place the cucumber slices in a bowl and sprinkle with salt. Mix them well and refrigerate for at least 20 minutes. This draws out excess water, keeping the salad crunchy and preventing a watery dressing.
After sweating, drain the cucumbers and rinse quickly under running water for 10 seconds. Gently squeeze out excess water, so your salad isn’t too salty once the soy sauce is added.
In the same bowl, add sesame oil, light soy sauce, sugar, rice vinegar, chili oil, sesame seeds, and garlic if using. Stir until everything is evenly combined and aromatic.
Gently toss the cucumbers with the dressing, making sure each slice is coated. Serve immediately for the freshest taste, or chill briefly if you prefer a colder salad.