Cut the tofu into 2cm cubes.
Finely chop the green onion, garlic, and ginger.
Add cooking oil to a pan and stir-fry the ground pork.
Add the chopped green onion, garlic, and ginger and continue stir-frying.
Add Doubanjiang, soy sauce, and sugar, and stir-fry together.
Pour in water or stock and bring to a boil.
Add the diced tofu and let it simmer over medium heat.
Add the starch water to adjust the thickness.
Finish with a drizzle of sesame oil and a sprinkle of pepper.