Whisk together the sauce ingredients and set aside until ready to use.
Once the tofu is pressed, add 2 tablespoons of cornstarch to a small, shallow dish and coat the tofu on both sides.
Add 2 tablespoons of sesame oil and 1 tablespoon of soy sauce to a large skillet over medium heat. Add the tofu to the pan and cook for 3-5 minutes on one side, until crispy.
Flip over the tofu pieces and cook until crispy on the other side.
Towards the end of crisping the tofu, make a well in the middle of the pan and add the ginger and garlic. Cook for 1 minute, stirring well so it doesn't burn.
Pour the sauce over the top of the tofu and let simmer for about 5 minutes until it thickens. Stir well to evenly coat the tofu.