At the check-out Thomas noticed a tiny bottle marked 'Coconut Pandan Emulco'. At about a quid, he was intrigued so asked the check-out operator what you use it for. She had very little English so simply replied 'cake'.
So we brought it home and asked for ideas on Facebook. This recipe was suggested. Not seeing Malaysian as a hindrance, Thomas rustled up something Lots could work with and a few hours later, Granny had a very coconut, glow-in-the-dark birthday cake that tasted wonderful! I definitely think we'll be stocking up on more pandan emulco next time round!