01 - Preheat the air fryer to 400°F for 3 minutes.
02 - In a bowl, gently toss tofu cubes with cornstarch, olive oil, salt, and black pepper until evenly coated.
03 - Place tofu cubes in a single layer inside the air fryer basket, working in batches if necessary.
04 - Air fry for 15 to 18 minutes, shaking the basket halfway through cooking, until tofu turns golden and crispy.
05 - While tofu cooks, combine soy sauce, maple syrup, rice vinegar, toasted sesame oil, garlic, and ginger in a small saucepan and bring to a simmer over medium heat.
06 - Stir in the cornstarch slurry and whisk continuously until the glaze thickens, about 1 to 2 minutes. Remove from heat.
07 - Transfer the crispy tofu to a large bowl, pour the warm soy glaze over, and gently toss to coat evenly. Serve immediately, garnished with toasted sesame seeds and sliced green onions if desired.