Cut the tofu into 1.5cm cubes.
Finely chop green onion, garlic, and ginger.
Heat cooking oil in a pan and stir-fry the chopped green onion, garlic, and ginger.
Add ground pork and stir-fry.
Add chili oil, Doubanjiang (spicy bean paste), soy sauce, and sugar, then stir-fry.
Add tofu and water, and bring to a boil.
Season with chili powder and pepper.
Thicken the sauce with starch water.
Drizzle sesame oil and garnish with chopped green onions to finish.