Wash and chop the cabbage into bite-sized pieces.
In a large skillet or wok, heat the vegetable oil over medium-high heat.
Add the minced garlic and sliced chili to the skillet. Stir-fry for about 30 seconds until fragrant
Add the chopped cabbage to the skillet. Stir-fry for about 5 minutes until the cabbage starts to soften.
Add the soy sauce, oyster sauce, sugar, and salt. Stir well to coat the cabbage evenly.
Continue to stir-fry for another 2-3 minutes until the cabbage is tender but still has a bit of crunch.
Drizzle with a little sesame oil and garnish with sliced green onions if desired. Serve hot as a side dish or over rice.