01 - Preheat the air fryer to 400°F for 3 minutes.
02 - Toss tofu cubes with 2 tablespoons soy sauce and let marinate for 5 minutes.
03 - Sprinkle tofu with cornstarch and garlic powder, then drizzle with sesame oil. Toss gently to coat evenly.
04 - Arrange tofu in a single layer in the air fryer basket. Cook for 12 to 15 minutes, shaking halfway through, until crispy and golden.
05 - Combine soy sauce, maple syrup, rice vinegar, water, garlic, and ginger in a small saucepan. Simmer over medium heat.
06 - Mix cornstarch with a splash of water to create a slurry. Stir into simmering sauce and cook for 1 to 2 minutes until thickened, then remove from heat.
07 - Transfer tofu to a large bowl, pour the glaze over, and toss gently to coat.
08 - Serve immediately garnished with sesame seeds and sliced spring onions, if desired.