Preparation
Drain the tofu in a bowl, then cut into smallish cubes. Heat the oil in a wok over high heat. Add the pork and chilli sauce and stir fry until the pork is cooked. Add the tofu, prickly ash powder and minced stock cube and gently stir through the sauce so as not to break up the tofu too much. After about 3 minutes it should be ready - sprinkle over the spring onion and serve.