Steps
1. Marinate the diced chicken with soy sauce and cornstarch for 10 minutes.
2. Heat vegetable oil in a pan over medium-high heat.
3. Add garlic, ginger, and sliced chili; stir-fry for 30 seconds until fragrant.
4. Add the marinated chicken and cook until browned and cooked through, about 5-6 minutes.
5. Add bell peppers and stir-fry for another 2 minutes.
6. Mix hoisin sauce, rice vinegar, and sugar in a small bowl; pour into the pan.
7. Stir well to coat the chicken and vegetables evenly.
8. Add roasted peanuts and green onions; cook for an additional minute.
9. Remove from heat and serve hot, ideally with steamed rice.