2. Slice the tenderloin and cut the warp with a horizontal knife, so that the beef will be tender.
3. Chop the wild pepper, chop the ginger and garlic, and cut the chives into small pieces.
4. Pour the pepper juice into the beef slices for pickling, and let the beef taste the pepper.
5. Heat the oil pan, stir-fry the ginger and garlic, and stir-fry the beef in the pan.
6. Stir-fry beef, add white wine or cooking wine, and add soy sauce essence.
7. Add some starch to the wild pepper to thicken the soup, sprinkle with chopped green onion and mix well.
8. Pepper beef.