01 - Wrap tofu in a clean kitchen towel and place a heavy object on top to press out excess moisture for 10 minutes.
02 - Cut pressed tofu into 3/4-inch cubes.
03 - Whisk together soy sauce, sesame oil, garlic powder, smoked paprika, and black pepper in a large bowl.
04 - Add tofu cubes to the marinade and toss gently to coat evenly.
05 - Sprinkle cornstarch over tofu and toss until each piece is lightly coated.
06 - Preheat air fryer to 400°F for 2 minutes.
07 - Place tofu cubes in a single layer in the air fryer basket, avoiding overcrowding. Cook in batches if necessary.
08 - Air fry for 12 to 15 minutes, shaking the basket halfway through, until golden and crispy.
09 - Serve hot, optionally garnished with green onions or sesame seeds.