Take 2 bamboo leaves, overlap them and fold to make a cone leaving no holes. Take a handful of blue rice and fill the bottom and line the sides of the leaves, leaving a well in the centre.
Fill in with 2 tablespoons of the pork filling, then top with the white-coloured glutinous rice pressing down. Place a square of pandan leaf, then wrap tightly with string to close and secure the dumpling.
You will have a pyramid-like shape. Repeat with the rest of the pork mixture and glutinous rice.
Fill a large pot with water, add salt and 2 pandan leaves. Lower the dumplings into the water and bring to boil over high heat.
Lower heat to a gentle simmer and close pot. Cook for 21/2 hours. Test doneness with one dumpling. The texture of the rice should be tender when hot but firm and chewy after it has cooled.
It is ready to eat when the dumpling has cooled.