Cut the tofu into 1.5cm cubes.
Finely chop green onion, garlic, and ginger.
Heat cooking oil in a pan and stir-fry minced pork.
Add garlic, ginger, and green onion, and stir-fry together.
Add chili oil, Doubanjiang (spicy bean paste), soy sauce, and sugar, and stir-fry.
Add tofu and broth, and bring to a boil.
Season to taste, then add starch water to thicken the sauce.
Finally, drizzle with sesame oil and sprinkle with pepper.