01 - Whisk soy sauce, sesame oil, rice vinegar, smoked paprika, garlic powder, and white pepper in a bowl until combined.
02 - Add tofu cubes to the marinade and gently toss to coat. Let sit for 10 to 15 minutes to absorb flavors.
03 - Combine cornstarch, panko breadcrumbs, and salt in a shallow dish, mixing thoroughly.
04 - Dredge each marinated tofu cube in the coating mixture, pressing lightly to ensure the coating sticks evenly.
05 - Heat vegetable oil in a deep pan or wok to 350°F (180°C) for deep frying.
06 - Fry tofu cubes in batches for 3 to 4 minutes until golden brown and crispy on all sides.
07 - Remove fried tofu with a slotted spoon and drain on paper towels to remove excess oil.
08 - Serve warm with your preferred dipping sauce or incorporate into main dishes as desired.