Slice should not be too thin, about 3-4 mm will do. It's better to be large and easy to clip.
There are two ways to make beef powder. Generally, beef powder is cooked first, and then fried. However, I recently saw a banquet in Manchu and Han dynasties, saying that beef powder is the best to eat first, so that the umami flavor of beef will not be diluted by powder.
Hot oil should be put in the pot first and then in the pot. Don't use too much oil. It is best to expose most of the beef slices, and the beef surface can be dried after being oiled. Then fry the beef until it is half cooked and add salt. Don't need too much salt.
Add soy sauce, and after the oil is absorbed by the meat slices, the pot is already very dry. Then serve fresh soy sauce at this time. Let the soy sauce and beef slices boil.
At this time of the pot, beef slices dipped in sauce is delicious. You can provide some pepper or olives if you like. It tastes crispy and chewy, and tastes delicious. The umami flavor and sauce flavor of beef blend together, which really makes people drool.