1In a large mixing bowl, combine the shredded cabbage, julienned carrots, sliced onion, and sliced serrano pepper.
In a small bowl, mix together the chili garlic sauce, sugar, salt, and black pepper until well combined.
Pour the sauce mixture over the vegetables and toss everything together until the vegetables are evenly coated with the sauce.
Let the salad sit for at least 15 minutes to allow the flavors to meld together.
Serve the salad chilled or at room temperature as a side dish or appetizer.