Required materials: beef, egg white, onion, starch, yam.
Specific practice: soak beef onion and ginger until soft, cut yam and beef into small pieces, add egg white and beat well, then add onion and beat well, then add starch and beat well carefully, add some soy sauce and pine fresh. Stir well and put in a paper bag. Add a little oil and fry on both sides.
Beef and yam really go well together, they don't know how to burn wood at all, and they are especially delicious, so make arrangements for the long and high season in spring.