Press the block of tofu for at least 15 minutes to remove excess water, then cut into bite-sized cubes about 2 cm wide.
In a mixing bowl, combine cornstarch, paprika, garlic powder, cayenne pepper, and a pinch of salt to create the coating mixture.
Toss the tofu cubes gently in the spice mixture, ensuring each piece is thoroughly coated with the seasoned cornstarch for crispiness.
Line a baking sheet with parchment paper and arrange the coated tofu evenly on it, leaving space between each piece.
Spray the tofu evenly with oil to help it crisp in the oven, then bake at 200°C (400°F) for 25-30 minutes, flipping halfway through to ensure even browning.
Check for golden edges and a crackly surface. Once done, remove from the oven and let rest for 5 minutes to allow the coating to set.
Serve the crispy tofu nuggets warm with your favorite dipping sauce, and enjoy their crunchy, tender texture.