1. Cut chicken thighs into bite-size strips and season lightly with salt and pepper.
2. Heat 1 tablespoon of vegetable oil in a wok or large skillet over medium-high heat. Add chicken and cook until browned and cooked through, about 5-6 minutes. Remove and set aside.
3. In the same wok, add the remaining tablespoon of vegetable oil. Add minced garlic and grated ginger, stir-frying until fragrant, about 30 seconds.
4. Add broccoli florets and stir-fry for 3-4 minutes until tender-crisp. If using cornstarch, mix it with a little water and add to the wok to thicken the sauce.
5. Return the cooked chicken to the wok, pour in the stir-fry sauce, and stir everything together for about 2 minutes until well coated. Serve hot over rice or noodles.
Notes
Customize the recipe by adding other vegetables like bell peppers or carrots. For extra flavor, garnish with sesame seeds and chopped green onions before serving.