It is a delicacy from Bengali ( bangali ) ( বাঙালি ) cuisine.Flowers of Basella alba ( also known as Pui, vine spinach, red vine spinach, climbing spinach, creeping spinach, buffalo spinach, Malabar spinach and Ceylon spinach among others.Source : Wikipedia) cooked with flat beans (শিম) , brinjal and prawns / shrimps (চিংড়ি )