In a bowl, add the pork along with ¼ teaspoon salt, 1 teaspoon Shaoxing wine, 1/8 teaspoon ground black pepper, 2 teaspoons cornstarch, and 1 teaspoon vegetable oil. Let marinate for 15 minutes.

Now we are ready to cook! Heat 1 tablespoon of vegetable oil in a wok over medium heat. Add the carrots, and cook for about a minute. Transfer to a dish and set aside. Be careful not to overcook them--the carrots should still be crunchy.

In the same wok, heat 2 more tablespoons of oil over high heat. Once the oil starts to smoke slightly, add the marinated pork, and give it a quick stir. Once the pork turns color from pink to white, turn down the heat (to avoid burning). Transfer the pork to a separate bowl and set aside.

At this point, the wok should still be glistening with oil. Pour in the sauce, turn up the heat, and stir the sauce quickly for a few seconds--it should be bubbling. Toss the carrots and the pork back into the wok, quickly stir-frying to combine. Add a few drops of sesame oil. Once everything is well-coated with sauce, turn off the heat, dish it out, and serve hot with rice! Garnish with scallions, if desired.