Boil the red beans in 4 cups water
until the beans expand. Add in the ginger, screwpine leaf and
salt. Add in palm sugar and sugar. Stir until the sugar dissolve. Put in the thin coconut milk and bring
to boil. Add the sago and thick coconut milk. Stir constantly. When the sago becomes transparent and
shiny, remove the screwpine leaf. Serve either hot or cold in small
serving bowls.