Cut the tofu into 1.5cm cubes.
Finely chop green onion, garlic, and ginger.
Add cooking oil to a pan and stir-fry the minced pork.
Add chopped garlic, green onion, and ginger, and stir-fry.
Add doubanjiang, soy sauce, and chili oil; mix well.
Add tofu and broth, and bring to a boil.
Add starch water to adjust the thickness.
Finish with sesame oil and black pepper.