Squeeze excess water out of the tofu by placing between dishtowels and applying pressure. Then cut the tofu into bitesized pieces.
Add the tofu and the cornstarch into a bowl to coat the tofu.
Add oil to a preheated frying pan and heat until simmering on a medium/high heat. Add the tofu squares and cook until golden on one side, then flip and continue cooking, turning occasionally until crispy brown all over.