1. Materials: beef tenderloin 1 block (200g), small potatoes (200g), 2 shallots, 2 tablespoons of soy sauce (30ml), sesame oil 1/2 teaspoons (3ml), sugar 1 teaspoons (5g), etc.

2. Cut the beef into thick strips first, then dice it, and wash the small potatoes.

3. Heat oil in the pan, add diced beef and fry for 10 minutes.

4. Add sugar, salt, sesame oil and soy sauce, add 2 cups of hot water to boil, stew beef 15 minutes, then add small potatoes, shallots and stew beef 15 minutes.