Ti' Punch

Put the cane syrup into a short tumbler.

Cut a disc from the side of a lime, taking the peel and a little flesh but avoiding the bitter core.

Squeeze the disc over the glass to release its juice and oil, then drop it in.

Stir the lime and syrup together briefly.

Pour the rhum over and stir once more.

Add a single ice cube only if you want it. Serve straight away and expect it to be drunk in a few mouthfuls.