traced back to the Tang dynasty as a royal food in Chang'an, known as lüdui (碌䭔). This food item was also recalled in a poem by the Tang poet Wang Fanzhi...

餜 餛 餳 饂 饅 餲 餵 饋 蝕 餶 饠 餇 饄 饓 餯 飿 餼 餠 飭 飪 飵 饡 飾 餂 餧 飥 餓 飫 飢 飽 饞 餡 飲 餎 餿 餭 餽 䭔 餱 餉 餁 飹 餾 飯 餰 餚 餙 餆 饀 餒 飤 餘 餄 飻 餩 饑 飴 餕 飳 饟 饘 飰 饝 餹 餏 餃 餢 餫 飶 饍 饈 餻 餅 餸 𩜇...