青红丝，制作中秋月饼，十五汤园，酥饼松糕等中国传统点心必不可少

https://baike.baidu.com/item/青红丝  

http://news.qingdaonews.com/qingdao/2015-09/27/content_11279195_all.htm

https://www.xiachufang.com/recipe/102907101/