Cut tofu into bite-sized pieces.
Season the tofu with salt and pepper.
Coat tofu evenly with starch.
Heat enough cooking oil in a pan and fry the tofu until golden brown.
Place the fried tofu on a paper towel to remove excess oil.
Put sauce ingredients (soy sauce, gochujang, oligosaccharide, etc.) in a pan and bring to a boil.
Add the fried tofu to the sauce and stir-fry evenly.
Serve on a plate and finish by sprinkling sesame seeds and chopped green onions.