According to legend, Liu An, the king of Huainan, did not engage in political affairs and was very ambitious. He was not satisfied with being a king in name only. He always wanted to seek a more prominent real position. He was also obsessed with the art of immortality and was eager to find a panacea.

So he summoned his sorcerers and disciples at the foot of Bagong Mountain, lit a blazing fire, and creatively asked them to use soybeans and salt brine to make elixirs. As a result, they "refined" snow-white and delicate tofu.

Although it is not a panacea, it is delicious and has a unique flavor. This thing spread quickly and became popular in the world. There is a poem to prove it: "The bean seedlings are sparse, and my heart is suffering from exhaustion. If I had known the art of Huainan, I would have been able to get spring cloth in peace." Since then, tofu nao has become a famous traditional snack of the Han people.

Extended information:

Note

1. The tenderness of the tofu depends on the added brine and heat, and the key to the taste is the brine.

2. The elderly and patients with iron deficiency anemia should eat less, and children should not eat more.

3. Tofu must not be eaten with foods high in oxalic acid. The reason is that tofu contains high calcium. Calcium and oxalic acid can form insoluble or incompatible calcium oxalate, which affects the absorption of calcium. For example, spinach, bamboo shoots, amaranth, etc. contain high oxalic acid, but if the cooking method is changed, it is still OK.

Reference: Baidu Encyclopedia-Tofu Nao