Among the items most in demand among the Vietnamese diaspora in all corners of the world are specialties from Hai Duong Province: green bean cake Rong Vang Bao Hien and glutinous rice cake dyed black with a concoction of pinnate leaves Ninh Giang.

Among Vietnamese traditional cakes, “banh gai” is perhaps the most multipurpose because it can be used as an offering at wedding ceremonies, as gifts at longevity parties,