In a wok, heat 2 tablespoons vegetable oil over medium-high heat, add chopped scallion (white part only), garlic, ginger, and Sichuan Peppercorn. Continue to cook, tossing often for about 30 seconds or until fragrant.
Add the browned pork back to the wok. Keep stirring for about 30 seconds.
Add the noodles to the wok, give it a quick stir. Add the sauce 2 (1 tablespoon hoisin sauce, 1 tablespoon sesame oil, 1 tablespoon dry sherry, 2 teaspoons chili garlic sauce) into the wok. Continue to cook, tossing often for about 45 seconds - 1 minute or until the noodles are coated with the sauce. Adjust seasoning if needed.
Remove from the heat. Serve with the remaining scallions (green part).