Which brand of Luoyang Peony cake is authentic?

Luoyang has two authentic ones, namely:

1. The Henan specialty store next to Laoji overpass in the old city is a good old shop selling Peony cake and Henan specialties.

2. Lijingmen Wengcheng has a Henan cuisine store, which specializes in Peony cake.

Luoyang Peony cake is a traditional snack in Luoyang, Henan Province. It is also a kind of cake mainly made of beans. Crispy and soft, it has the functions of promoting human metabolism, lowering cholesterol and preventing cell aging. It is said that this snack is related to Wu Zetian.