Prepare the spiral cucumbers by cutting the ends of each Persian cucumber.
Place one cucumber between two cheap takeout chopsticks. Make thin diagonal slices on the top. Flip the cucumber over and do the same on the other side. Side Note: Do not cut them at a straight angle, or the spiral will not work.
Cut the cucumber in two. Repeat for the remaining cucumbers.
Salt the cucumbers by transferring them to a large strainer and sprinkling sea salt evenly over them. Set aside for 10-15 minutes to allow the cucumber to release excess liquid.
Gently rinse the cucumbers with water to remove the salt, then place them on a towel or paper towels and dry thoroughly.
Meanwhile, make the dressing by combining the soy sauce, black vinegar, chili oil, sugar, and garlic in a large bowl.
To serve, pour the well-whisked dressing over the salad, and gently toss to coat evenly.
Top with sliced green onions and toasted sesame seeds. Serve and enjoy.