Caerphilly's Walls Feed You: If You Know How to Ask

There is a particular kind of hunger that castles create in me — not the hunger of the tourist who photographs a portcullis and moves on, but the hunger of someone who understands that every stone fortress is also a record of what people ate inside it, who cooked it, where the grain was stored, how the smell of rendered fat and woodsmoke would have settled into the great hall the way salt settles into bread.

Caerphilly Castle has just had £8 million spent on its bones. Cadw, the Welsh heritage body that tends to Wales' largest castle like a slow-braised thing that must never be rushed, has completed enough of the restoration that visitor numbers are climbing again — people arriving from places that have nothing like this, standing in front of walls that have been standing since the thirteenth century, trying to understand what it means to build something that was always also a larder.

Because that is what a castle is, at its most honest. It is a food system with walls around it. The great keeps of medieval Wales — and Caerphilly is the most ambitious of them, an island fortress with concentric defences that would have made a Norman engineer weep with either admiration or envy — were designed around the storage and distribution of food as much as around the projection of military power. The constable's accounts, where they survive, read less like military documents and more like the prep lists of a very anxious head chef. How much salt. How many barrels of salted fish. How many sacks of oats. The question of survival was always, first, a culinary question.

What interests me about Caerphilly specifically — and I have eaten my way through enough of South Wales to have strong opinions about this — is its position at the intersection of three food cultures that rarely get treated with the seriousness they deserve. The Welsh kitchen that preceded it, built around leeks and salt lamb and the particular sourness of buttermilk bread. The Norman kitchen that arrived with conquest and brought with it spiced meats, the habit of using pepper as currency and flavouring simultaneously, the entire architecture of the medieval feast as performance. And the merchant culture of the Bristol Channel, which meant that Caerphilly's garrison would have had access to goods that inland fortresses would never see — imported spices moving through Cardiff, dried fruit, the kind of bottarga-adjacent salted and pressed fish that the Mediterranean had been making for millennia and that trade routes were slowly, improbably, delivering to the edges of Wales.

I find myself thinking about this in the same way I think about Malta's own layered food history — Arab spice merchants who left cumin and coriander embedded in a cuisine that still carries their fingerprints, Norman administrators who brought the habit of structured feast days, the Knights of St John who ate with the kind of elaborate ceremony that turned a meal into a theological argument. Every cuisine is a palimpsest. Caerphilly is no different. The £8 million restoration has given its walls back their dignity, but the real archaeology is in the recipes that were never written down, the techniques that passed from garrison cook to garrison cook across two centuries of occupation, the smell that the stones have long since released but that I am convinced, on certain mornings, is still there if you know what you are looking for.

The piece I want to write — the piece I am always trying to write — is the one that takes a place like Caerphilly and asks not what happened inside it but what was eaten inside it, and by whom, and whether the people who cooked it understood that they were making history with their hands as much as the men with swords were making it with theirs. The cook in the great kitchen of a medieval Welsh fortress was practicing the same alchemy that Jack and Will practice at Fallow — taking what was available, refusing to call anything waste, understanding that the leek trimmings and the bone ends and the whey left from cheesemaking were not leftovers but a second story waiting to be told.

Restoration gives a castle its face back. But food gives it its soul. And the soul of Caerphilly is still there, somewhere between the postern gate and the great hall, in the ghost of a salt fish stew that fed a garrison through a February that nobody recorded but everybody survived.

Go find a leek. The older and more forgotten at the back of your refrigerator, the better. Brown it in butter until it is almost beyond itself, add a splash of something dry and white, a piece of whatever