Steps

1. Gently remove tofu from packet and invert onto a plate. Carefully cut into 20 cubes by cutting lengthways into equal slices, then widthways into 5.
2. Heat oil in a hot wok until surface seems to shimmer slightly. Add pork, garlic, and ginger, and stir fry for 1 minute. Add wine or sherry, sugar, soy sauce, oyster sauce, sesame oil, Sichuan pepper, and salt, and stir fry for 30 seconds. Pour in water and stir fry for a further 30 seconds. Carefully slide tofu into wok with vinegar and chile oil, gently separating tofu as it falls into the pork mixture. Reduce heat and simmer, uncovered, for 3 minutes or until pork is cooked through.
3. Spoon braised tofu into a shallow bowl and top with lettuce and tomato. Garnish with spring onions and sprinkle with extra Sichuan pepper and salt.