Cooking Steps

1. 

   Step1:Remove the blood from the beef tenderloin and dry it with kitchen pape

2. 

   Step2:Cut into thin slices. Pat loose with the back of the knif

3. 

   Step3:You can pat both sides evenl

4. 

   Step4:Put in corn oil, raw soy sauce, old soy sauce, salt, black pepper and scallion, evenly daub them, massage them properly by hand, promote absorption, wrap them with plastic wrap, refrigerate them overnight, if not eaten the next morning, marinate them for about half an hour

5. 

   Step5:Heat the pan with a small piece of butter. Melt and fry the steak.

6. 

   Step6:Half an onion. Dice it and fry it with butter

7. 

   Step7:Plate. I cut it into small pieces. It's convenient for children to eat