Slice the red and green chilies, remove the seeds if you prefer a milder heat. Chop the white onions into large chunks. Cut the green onions into long pieces.
Heat oil in a wok or large frying pan over medium heat. Sauté minced garlic until fragrant.
Mix in the light soy sauce, dark soy sauce, oyster sauce, and white sugar. Mix thoroughly before continuing.
Toss in the sliced chilies and onions, stir-frying until the chicken is fully cooked, and the vegetables are tender to your liking, or 1–2 minutes.
Turn off the heat and stir in the green onions until they are slightly wilted. Serve immediately.
Notes
Use the nutrition card in this recipe as a guideline.
For a mild dish, use fewer chilies or remove the seeds.
Feel free to switch up the protein with pork, beef, or even tofu.