Hishi mochi is a traditional Japanese rice cake shaped like a diamond, typically enjoyed during the Hinamatsuri or Doll Festival, celebrated on March 3rd. It is made from glutinous rice flour and comes in three layers, each colored pink, white, and green. The pink layer symbolizes the peach blossoms, the white represents purity, and the green signifies growth and vitality. This colorful treat is often served alongside chirashi sushi and other festive foods during the celebration. Hishi mochi is not only a delicious snack but also a symbol of good health and happiness for girls, making it an essential part of the Hinamatsuri festivities.