1. Soak the beef in clean water for 2-3 hours, soak in bleeding water.
2. Cut the beef into 1 cm thick slices.
3. Line loose on both sides with the back of a knife.
4. The beef is marinated for a while with very fresh soy sauce.
5. Cut the onion into small pieces.
6. Add butter to the pan to melt.
7. Add beef and fry.
8. Turn over and fry.
9. Add onion and fry until broken. Take out the serving plate and drizzle with steak sauce.
Tips:Put the beef in the pan and fry it over medium heat to lock in the moisture, then fry it over low heat for about 1 minute, and it will be cooked.
