Buddha's pudding
Traditionally after Gautama’s Wesak address, his devotees partake of rice pudding in commemoration of the rich rice milk that Sujata, a villager’s daughter, served Gautama before his meditation under the Bo tree. The Gospel of Buddha records that when Gautama had partaken of the rice milk, “all his limbs were refreshed, his mind became clear again, and he was strong to receive the highest enlightenment.”
Sources
Pearls of Wisdom, vol. 35, no. 20.