Derval O'Rourke: How to stay healthy over Christmas, plus a recipe for cheesy potato gratin

This week Derval O'Rourke shares her guide to feeling well during the festive season plus her recipe for a delicious potato gratin.
We're two weeks away from Christmas Day, and whilst I’m really excited, I also want to take it as a time to recharge and have a healthy, happy break from the normal day-to-day routine. This week I’ll share my guide to feeling well during the festive season. Recipe wise I’ll share a delicious potato gratin.