1. Wash the beef and cut into long strips, add olive oil, sesame oil, sugar, cornstarch, black pepper, light soy sauce, fish sauce, oyster sauce, yellow wine, stir well and marinate for 20 minutes
2. Wash red and yellow bell peppers and white onions, cut into strips for later use
3. Bring to a boil underwater, olive oil and salt, then add the pasta and cook for 10 minutes (after the water boils again)
4. Pick up the pasta and stir up the pasta for later use
5. Bring to a boil, add olive oil, butter, and half the amount of white onion until fragrant
6. Add beef tenderloin and stir fry for a while
7. Add red and yellow bell peppers and stir fry until the beef tenderloin is 7 mature
8. Then stir fry the pasta for a while
9. Add black pepper sauce and stir fry for a while
10. Finally, add the remaining white onion and black pepper and stir fry for 1 minute.
