Cut the tofu into bite-sized pieces.
Use a paper towel to remove excess moisture from the tofu.
Add cooking oil to a pan and preheat over medium-low heat.
Place the tofu in the pan and grill both sides until golden.
In a bowl, mix soy sauce, sugar, minced garlic, water, and sesame oil to make the seasoning sauce.
Pour the sauce evenly over the golden tofu and stir-fry over medium heat.
When the sauce thickens, sprinkle chopped green onion and sesame seeds to finish.