Finely chop garlic and ginger.
Prepare dried chili peppers and Sichuan peppercorns.
Heat cooking oil in a pan, then stir-fry garlic, ginger, dried chili peppers, and Sichuan peppercorns.
Add doubanjiang, chili oil, soy sauce, and sugar, then stir-fry.
Pour in chicken stock and water, then bring to a boil.
Once all the ingredients are well combined, turn off the heat and transfer to a bowl.