Sweet and sour egg tofu 酸甜豆腐 Ingredients: 2 tubes of egg tofu, sliced Half tablespoon soy sauce Half tablespoon dark soy sauce 1 teaspoon black vinegar 1 tablespoon sugar 1 tablespoon water Half teaspoon corn starch 3 tablespoons of flour Canola oil, enough to cover base of wok Steps: 1. Heat up oil in wok. 2. Coat egg tofu in flour and put into wok to fry. 3. Once it turns slight brown, flip each of them over to fry the other side. 4. When both sides are brown, scoop out all the egg tofu and place them on a plate. 5. In a small bowl, mix together soy sauce, dark soy sauce, black vinegar, sugar, water and corn starch. 6. Heat the mixture in a separate pan on low heat till it thickens. 7. Pour thickened gravy onto the plate of egg tofu and serve hot.