I've tried the sweet soup stalls in Beihai. This one should be the most delicious. The later it gets, the more people there are. It should be a family business. The kids help the adults. Peel the ginkgo nuts. Cut the red dates. I like their taro sago the most. The taro is crispy. It's so delicious. It turns out that water chestnut cake is taro balls. A big bowl is only five yuan. It's so expensive to eat taro balls at Xian Yuxian. Quail eggs and chicken eggs seem to be standard for sweet soup. Duck feet are also a signature dish here. I'll try their Qingbuliang next time.