Rooibos has been used for millennia in South Africa as a rehydrater, and this rescue remedy is an easy and delicious way to do battle with a New Year’s Day hangover. It’s equally good served hot or cold: make it the night before and refrigerate, or warm your hands around the comfort of a hot mug. If you’re made of sturdier stuff, turn it into a hot toddy by replacing the lemon juice with 25ml good dark rum.
