In a small mixing bowl, soak a tablespoon of Sichuan peppercorns in boiling water for 30 minutes. Set aside.
If you have whole beef and pork, grind the beef and pork separately to make minced meat.
Alternatively, you can use ground beef and ground pork to skip step 2.
In a bowl, combine 100 grams of minced pork with 300 grams of minced beef.
Then, add salt, chicken bouillon powder, and thirteen spices.
Next, add pepper water (the water from the soaked peppers). This should be added gradually, at least in three increments. You can add one tablespoon at a time.
Keep stirring until the meat becomes moist and juicy.
Afterward, combine light soy sauce, dark soy sauce, oyster sauce, and sesame oil. Mix well.
Finally, add minced ginger, diced onions, and carrots.
Stir well until the ingredients are well-combined.