5: Prepare the whole melon like this, putting the balls into a bowl as you go. If you do not have this special kind of spoon, you can simply dice the melon.
6:
Combine the flavours
Pour the cold syrup through a strainer onto the melon balls. Add the juice of ½ lime and 2 tablespoons rum. Mix well.
7: Cover and refrigerate before serving.
8: Serve in glass dishes, garnished with a sprig of mint.
Remarks
Try to leave the melon balls in the syrup for at least 30 minutes, so that the flavours have time to mingle well. Choose your melon carefully: it needs to be fully ripe.