1. Ingredients: 100g beef, 500g beef trotters, 10g balsamic vinegar, 20g green onion knots, 2g shredded ginger, 10g ginger cubes, 100g rice wine, appropriate amount of refined salt, 4 star anise .

2. Wash the beef and cut into pieces. Remove the hair on the cow's hooves with a fire, scrape it clean, cut it into pieces along the joints with a knife, blanch it briefly in a pot of water, remove it, put it in the soup pot with the beef, add water, add green onion knots and ginger cubes , rice wine, and star anise and simmer until the beef hooves are crispy and fall off the bones. When the soup is thick, add refined salt to taste, remove from the heat, pour the soup into a rectangular aluminum plate, and wait until it cools and freezes.

3. Cut the solid beef jelly into pieces, place on a plate, add shredded ginger, and pour balsamic vinegar over it. Serve.