劉安
Tofu is thought to have originated in ancient China during the Han Dynasty. Liu An, the grandson of Emperor Gaozu of Han, was ambitious and wanted to invent something to make people live forever. Even though he failed to make the magic pill, he used soybean and bittern to finally get niveous and tender tofu, which was surprisingly tasty. People named it "tofu brains" because of its softness. Tofu brains then became a popular snack during Han Dynasty. In the next 2000 years, it gradually spread throughout China.