A detailed explanation of the recipe for Beijing Sauce Pork Threads: 1. Marinate the pork loin strips for about 30 minutes and set aside. 2. Wash the green onions, keep them, cut the white parts into threads, and arrange them on a plate for later use. 3. Take a pot, add 5 tablespoons of oil, heat the oil, then add the marinated pork loin strips from step 1, quickly stir-fry over high heat until the pork threads are cooked, then remove and drain the oil for later use. 4. Leave a little oil in the pot used for step 3, pour in all the seasonings, stir-fry over high heat until glossy...