Steam yam/sweet potato til softened, then mash it while still warm

Add in starch and salt, knead until mixture becomes a nice dough

Pinch a dough, and shape it into ovals or rounds

Pour water into a pot, add in knotted pandan, bring to boil

Drop in dough, cook until they are floating

Once all ovals are floating, add in sugars, stir well, bring back to fully boil again, then thicken it with tapioca starch solution, stir well

Take off from heat

In a clean pot, pour in coconut milk, season with salt and add in knotted pandan. Bring to fully simmering, while stirring. Take off from heat

Serve glutinous porridge topped with a generous spoon of coconut milk