Dice the tofu into cubes.
Chop green onions and garlic.
Heat cooking oil in a pan and stir-fry the pork.
Add the chopped green onions, garlic, and chili oil, then stir-fry.
Mix in the doenjang (soybean paste), gochujang (red chili paste), soy sauce, and sugar to make the sauce.
Add tofu and water, then bring to a boil.
Add starch water to adjust the thickness.
Finish by drizzling sesame oil and sprinkling pepper on top.