Press the liquids from the tofu as best you can. It doesn't need to be completely dry, but the drier the tofu, the crispier the exterior.
In a medium bowl, mix together the cornstarch and seasonings.
Place a large skillet over medium to medium-high heat and pour in enough vegetable oil to coat the bottom of the skillet with a little bit of depth.
While the oil heats, tear the tofu into scraggly bite-sized bits and add them to the cornstarch. Toss well to coat. If you need to, add more cornstarch to ensure all the pieces have a coating on them.
When the surface of the oil is shimmering, add the coated tofu pieces to the pan in a single layer. Use your fingers or a slotted spoon, to allow the extra seasoning to sift out. Let cook undisturbed for 3 minutes.
Flip the tofu pieces and cook the other side, undisturbed, for 3 minutes or so.
When the second side has a golden tint to it, you can begin stirring and breaking up any clumps of tofu that have stuck together.
Continue sauteeing until the tofu is nicely crisped. In all, it will take about 10 to 12 minutes for the tofu to crisp.
Transfer to a paper towel-lined plate and let rest.
Use immediately for hot dishes, or let cool to room temp for things like salads.