Peel and wash tapioca, then cut into thin strips. Boil tapioca with salt in a pot of water for 15 - 25 minutes. The water should cover the tapioca.
Once tapioca is cooked and has softened, remove from the pot and place in a pan. Mash tapioca together with sugar.
Top Layer
In a frying pan, stir gula melaka, salt, water and pandan leaves over low heat, until gula melts. Add grated coconut and mix well. Pour tapioca flour slurry and mix thoroughly. Continue to cook until all ingredients are well-combined. Remove from fire.
Assembly
Line 2 loaf pans with parchment paper, leaving overhang. Put in half of the mashed tapioca.
Spread mashed tapioca evenly in the pans.
Fold the overhang parchment paper to cover mashed tapioca. Press hard to compress it.
Unfold the paper and spread gula melaka grated coconut on top.
Fold the overhang parchment paper to cover grated coconut. Press hard to compress it.
Cut the kueh with a plastic scraper or knife.
Serve while warm. Keep leftovers refrigerated.
Recipe Notes
Leave overhang on both sides of loaf pan to allow for easy unmoulding of kueh.