In containers or silicone/plastic moulds, ladle a thin layer (about 1/8-1/4 inch) of the pandan mixture, then let set for about 3-4 minutes. Check with your finger to see if the layer is set, the surface should
feel slightly tacky. If you wait too long, the layers won't adhere to each other and will slide apart when set. If you want the jelly to set faster, you can chill the container in a larger tray with an ice bath.
Ladle a thin layer of the coconut on top, let that set (again, check with your finger for the tackiness), then repeat with a pandan layer. The jellies always look nicer and set faster when you do really thin layers. Repeat until you use up all the mixtures.
Let set in the fridge for at least 1-2 hours, and then remove from the moulds and slice into diamonds or squares/rectangles. Feel free to use a crinkle cutter or a knife :) Transfer to an airtight container and enjoy within 3-4 days!