Mei Gan Cai / Preserved Mustard Greens / Dried Mustard Leaf (梅干菜)

Mei Gan Cai is a specialty from Shaoxing, Zhejiang, China. It is made of fermented mustard green, then repeatedly dehydrated and steamed until it accumulates distinctive, salty, and savory flavors and aromas, which make dishes additively delicious. 

You can use it to make Mei Gan Cai braised Pork Belly.