Spiralize or julienne the cucumbers and place them in a bowl.
Mix garlic, green onions, chili oil, gochujang, rice vinegar, sugar, soy sauce, and sesame oil together in a small bowl.
Pour the dressing over the cucumbers and toss to coat evenly.
Garnish with toasted sesame seeds and extra green onions, if desired. Serve immediately or chill for 10-15 minutes for enhanced flavor.
