Boil pandan leaves in water for 10 minutes. Strain and measure 380 ml pandan water.
Add sugar and heat until fully dissolved.
Add coconut milk and salt, mix well, and bring to a gentle boil. Remove from heat and allow to cool.
Gradually add tapioca starch, mixing well to avoid lumps.
Add sago flour and mix thoroughly.
Strain the batter and divide evenly into 2 portions.
Mix blue pea extract into one portion.
Divide each portion into 3 equal bowls (total 6 bowls: 3 blue, 3 white).