Creating Easy Chinese Style Mango Chicken Stir Fry can be a breeze if you follow these simple steps:

1. Marinate Chicken: In a bowl, combine the chicken pieces, soy sauce, and a pinch of salt. Let it marinate for about 10 minutes to absorb the flavors.
2. Heat Oil: In a large wok or frying pan, heat the vegetable oil over medium-high heat until hot but not smoking.
3. Sauté Garlic and Onions: Add the minced garlic and sliced onions to the pan. Stir-fry for about 2 minutes until fragrant and the onions are translucent.
4. Add Chicken: Increase the heat to high and add the marinated chicken to the pan. Cook for about 5 minutes, stirring frequently, until the chicken is cooked through and golden brown.
5. Incorporate Vegetables: Toss in the mixed bell peppers and continue to stir-fry for an additional 3-4 minutes until the peppers are slightly tender but still crisp.
6. Add Mango and Sauce: Gently fold in the diced mango. Pour in the oyster sauce and stir to combine everything evenly.
7. Thicken Sauce: Lastly, add the cornstarch slurry to the pan and stir quickly until the sauce thickens, about 1-2 minutes. Taste and adjust the seasoning if necessary.

Your Easy Chinese Style Mango Chicken Stir Fry is now ready to be served!