Tofu is a good and cheap food, and there are many kinds of dishes with it. Today I will introduce a home-made preserved tofu dish. You can use northern tofu or marinated tofu. It is sour and sweet. The method is a bit like braised octopus. The fried tofu is simmered with seasoning for a while, and the juice is added to the tofu. , The sweet and sour taste is guaranteed to be inexhaustible!