In his search, Tiet-Lieu went back to the countryside. He saw that the rice in his paddy fields was ripe and ready to be harvested, Walking by a glutinous rice field, he picked some golden grains on a long stalk. He brought them close to his nose and he could smell a delicate aroma.

His entire family then set out to harvest the rice, Tiet-Lieu himself ground the glutinous rice grains into fine flour. His wife mixed it with water into a soft paste. His children helped by building a fire and wrapping the cakes with leaves. In no time, they finished, and in front of them lay two kinds of cakes: one was round and the other was square in shape.

The round cake was made with glutinous rice dough and was called “banh day” by Tiet-Lieu. He named the square shaped cake “banh chung” which he made with rice, green beans wrapped in leaves. Everybody was extremely happy with the new kind of cakes.

On the first day of Spring, the princes took the gifts of their labor and love to the emperor. One carried a delicious dish of steamed fish and mushrooms. Another brought with him a roasted peacock and some lobsters. All the food was beautifully cooked.

When it was Tiet-Lieu’s turn to present his gifts, he carried the “banh chung” and his wife carried the “banh day” to the emperor. Seeing Tiet-Lieu’s simple offerings, other princes sneered at them. But after tasting all the food brought to court by his sons, the emperor decided that the first prize should be awarded to Tiet-Lieu.

The emperor then said that his youngest son’s gifts were not only the purest, but also the most meaningful because Tiet-Lieu had used nothing except rice which was the basic foodstuff of the people to make them. The emperor gave up the throne and make Tiet-Lieu the new emperor. All the other princes bowed to show respect and congratulated the new emperor.