This gravy is rich, glossy and deeply savoury — the perfect companion to your roasted celeriac, mash and potatoes. Slowly caramelising the shallots brings natural sweetness and depth, while a splash of balsamic adds brightness that keeps the flavour balanced. It’s luxurious without being heavy, and it reheats beautifully, making it ideal for preparing ahead of Christmas Day.
You can double this recipe if you’d like plenty for leftovers, and it also freezes exceptionally well.