01 - In a small bowl, combine diced chicken, 1 tablespoon soy sauce, cornstarch, and 1 teaspoon vegetable oil. Let marinate for 10 minutes.
02 - Beat eggs with milk, salt, and pepper until combined.
03 - Heat 1 tablespoon vegetable oil in a large wok or skillet over medium-high heat. Stir-fry chicken until cooked through, about 4 to 5 minutes. Remove from pan and set aside.
04 - Add remaining 1 tablespoon vegetable oil to the pan. Sauté diced carrots and white parts of scallions for 2 to 3 minutes until slightly tender, then add peas and cook for an additional minute.
05 - Push vegetables to one side of the pan. Pour in egg mixture and gently scramble until just set.
06 - Add chilled jasmine rice to the pan, breaking up any clumps. Stir-fry everything together for 2 to 3 minutes until heated through.
07 - Return cooked chicken to the pan. Stir in soy sauce, optional oyster sauce, and sesame oil. Toss to coat evenly and heat through.
08 - Add green parts of scallions, season with additional freshly ground black pepper as desired, and serve immediately.