Melt the couverture with butter and milk for 2 minutes at 600 watts in the microwave, e.g. in the Tupperware Micro-Plus jug.
Then immediately whip vigorously for 2 minutes. Fold in desiccated coconut, rum & almonds. Fill into 1-2 glasses (I`ll use 2 Schlemmer pages with 170 ml each). Close jars or cans immediately. Let cool, pat the lid dry on the inside. Then keep in the refrigerator.
I just checked, my cream has been in the fridge for almost 3 weeks and is still good.
I can`t say whether it actually has anything to do with Jamaica - but I had to give it a name.