Creating Black Pepper Chicken is straightforward. Follow these steps for a successful dish:

1. Prepare the Chicken: Cut the chicken breasts into bite-sized pieces and season with salt and half of the black pepper.
2. Mix the Sauce: In a small bowl, combine the soy sauce, oyster sauce, cornstarch, and the remaining black pepper. Mix well and set aside.
3. Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
4. Cook the Chicken: Add the chicken pieces to the skillet and cook until browned and cooked through, about 5-7 minutes. Remove from the skillet and set aside.
5. Stir-Fry the Vegetables: In the same skillet, add the onion, bell pepper, garlic, and ginger. Stir-fry for about 3-4 minutes until the vegetables are tender-crisp.
6. Combine: Return the chicken to the skillet with the vegetables. Pour the sauce over the mixture and stir well to combine.
7. Cook the Sauce: Allow the mixture to cook for an additional 2-3 minutes, stirring occasionally, until the sauce thickens.
8. Garnish: Remove from heat and garnish with chopped green onions.
9. Serve: Transfer the Black Pepper Chicken to a serving dish.

These steps will guide you in creating this incredible dish effortlessly.