1. Put grass fruit, dried chili, cloves, bay leaves, fragrant fruit, nutmeg, star anise, gardenia, betel nut slices, angelica root, and long pepper into the spice bag
2. Put oil in the pan, add appropriate amount of chopped green onion and sauté fragrant, pour in beef cubes, stir fry until the color changes
3. Add dark soy sauce, cooking wine, light soy sauce, salt, stir fry and simmer for 30 minutes
4. In another saucepan, pour the fried beef, heat the water to cover the beef, and add the spice bag
5. Turn the high heat to a low heat and simmer for 2 hours.
