Where is the most authentic Bazhen cake?

Jinan, Shandong. According to the tourist guide website, Bazhen cake in Jinan, Shandong Province absorbed the essence of the traditional Bazhen cake formula, with good taste, good production technology and the most authentic. Bazhen cake is refined from eight kinds of medicinal materials, such as yam, Poria, Euryale euryales, rice kernels, wheat teeth, lentils, lotus seeds and hawthorn, with high-quality glutinous rice flour and white sugar.