Cut the tofu into 1.5 cm cubes.
Finely chop the green onion, garlic, and ginger.
Heat cooking oil in a pan and stir-fry the minced pork.
Add the minced garlic, ginger, and green onion and stir-fry together.
Add chili oil and fermented bean paste (Doubanjiang) and mix well.
Season with soy sauce, sugar, and ground pepper.
Add the tofu and gently mix while cooking.
Pour in water (or broth) and bring to a boil.
Add starch water to adjust the thickness.
Finally, add sesame oil, spicy green chili, and Sichuan pepper powder to finish.