How to Make Cornish Pasties Using a Cast Iron Pan

The Cornish Pasty: A Brief History Before You Begin

The Cornish pasty is one of Britain’s most protected foods. In 2011, it was awarded Protected Geographical Indication (PGI) status by the European Commission — a status that has been retained under UK law post-Brexit via the UK Geographical Indications scheme administered by the Food Standards Agency. This means that a pasty can only be called a “Cornish pasty” if it is made in Cornwall and meets specific criteria set out by the Cornish Pasty Association. What you make at home, therefore, is technically a pasty made in the Cornish style — but that takes nothing away from the pleasure of making it, and doing it properly in a cast iron pan elevates the result considerably.

The pasty’s origins are deeply practical. Tin and copper miners in Cornwall carried these crimped parcels of pastry underground as a complete meal. The thick crimped crust — often discarded because hands were contaminated with arsenic from ore — served as a handle. Some pasties were even made with a savoury filling at one end and a sweet filling at the other, separated by the crimp, giving miners both courses in a single package. Modern recipes have largely abandoned the sweet end, but the spirit of a substantial, self-contained meal remains.

Cast iron cookware has its own long British history. Foundries in places like Coalbrookdale in Shropshire were producing cast iron goods as far back as the 18th century. Today, brands like Le Creuset (French-owned but enormously popular in UK kitchens) and the American brand Lodge are the most widely used cast iron options in British homes, alongside specialist UK suppliers. Whatever pan you own, this guide will show you how to use it to produce a pasty with a beautifully even, golden base and a thoroughly cooked interior.

Why Use a Cast Iron Pan for Cornish Pasties?

Most Cornish pasty recipes call for oven baking on a flat tray, and that method works perfectly well. So why bother with cast iron? The answer lies in heat retention and heat distribution. Cast iron holds heat far more evenly than a thin aluminium baking tray, which means your pasty base — the most vulnerable part of the pastry — cooks consistently and crisply rather than burning in some spots and remaining pale and soggy in others.

There is also the question of the AGA, which remains common in farmhouses, older properties, and renovated country kitchens across the UK. AGA cookers, with their radiant heat and solid cast iron hotplates, are natural partners for cast iron cookware. If you cook on an AGA, a cast iron skillet or casserole dish is not merely a preference — it is often the most practical tool available, given that AGA ovens do not have the same degree of temperature control as conventional ovens.

Additionally, if you want to start your pasty on the hob to set the base before transferring to the oven — a technique that gives you maximum control over the pastry — cast iron is the only widely available material that handles this transition without complaint. Non-stick pans often cannot tolerate high oven temperatures; stainless steel conducts heat unevenly on the base. Cast iron simply does what you need it to do.

Equipment You Will Need

• A cast iron skillet or frying pan, at least 25cm in diameter (a 26cm Le Creuset or Lodge skillet is ideal)
• A large mixing bowl
• A rolling pin
• A sharp knife and a chopping board
• A pastry brush
• A side plate or bowl (approximately 20–22cm) to use as a pastry cutter template
• Baking parchment (optional but helpful)
• Kitchen scales — essential for accurate pastry making

If you own a Le Creuset skillet, note that the enamel coating on the interior is robust but not entirely non-stick; a light brush of oil or butter before placing your pasty is advisable. Lodge skillets have a raw cast iron surface that, once seasoned, provides excellent natural non-stick properties. Both work excellently here.

Ingredients for Four Cornish-Style Pasties

For the Shortcrust Pastry

• 500g strong plain flour (bread flour gives a more robust pastry better suited to handling)
• 125g cold unsalted butter, cubed
• 125g lard or vegetable shortening, chilled
• 1 teaspoon fine sea salt
• Cold water, approximately 150–175ml

A note on lard: the Cornish Pasty Association’s traditional recipes include lard in the pastry, and its use is entirely authentic. It produces a shorter, more flavourful crust than an all-butter pastry and holds up better to the weight of the filling. If you need a vegetarian version, replace the lard with a good quality vegetable shortening such as Trex, available in most UK supermarkets including Tesco, Sainsbury’s, and Morrisons.

For the Filling

• 350g beef skirt (the traditional cut) or braising steak, cut into small cubes no larger than 1cm — do not mince it
• 350g waxy potatoes (such as Maris Piper or Desiree), peeled and finely sliced
• 150g swede (often sold as turnip in Cornwall and parts of Scotland), peeled and finely diced
• 1 medium onion, finely chopped
• Salt and black pepper, generously applied
• A small knob of butter per pasty (optional but traditional)

Beef skirt is the authentic cut. It is a secondary cut from the lower abdomen of the animal, known for its flavour and its ability to become tender during the relatively short cooking time inside the pastry. Many British butchers stock it; if your local butcher does not, braising steak sliced thin and diced small is a reliable substitute. Do not be tempted to use mince — this is not a Cornish pasty tradition and the texture will be completely different.

The slicing of the potato deserves attention. Thin slices — around 3–4mm — are far preferable to cubes, because they cook through reliably in the time available and layer well with the other ingredients inside the pastry. Use a sharp knife or, if you have one, a mandoline.

Making the Pastry

Good shortcrust pastry requires cold fat and a light touch. Begin by sifting the flour and salt into a large mixing bowl. Add the cold cubed butter and lard. Using your fingertips — not your palms, which are too warm — rub the fat into the flour until the mixture resembles coarse breadcrumbs. Work quickly; you are not trying to achieve the ultra-fine crumb of a sweet pastry. Visible pea-sized pieces of fat are acceptable and will contribute to flakiness.

Add cold water a little at a time, mixing with a butter knife or your fingers until the dough just comes together. It should not be sticky. If it crumbles apart, add a small splash more water; if it sticks to your hands, you have added too much. Turn the dough out onto a lightly floured surface, bring it together gently into a ball, flatten slightly into a disc, wrap in clingfilm or beeswax wrap, and refrigerate for at least 30 minutes. This resting period is not optional — it relaxes the gluten and makes the pastry considerably easier to roll and far less likely to shrink during cooking.

Preparing the Filling

While the pastry rests, prepare your filling. Season the raw beef generously with salt and black pepper and set aside. Season the potato slices and diced swede separately. Keep the onion in its own pile. The filling goes in raw — this is critical to the Cornish method and is one reason why the pastry needs to be robust enough to contain everything while the raw meat and vegetables cook from the inside out.

Do not pre-cook anything. The magic of the pasty is that the steam generated by the raw filling cooks everything inside the sealed pastry case. Pre-cooking the filling produces a different, less authentic result and can make the pastry soggy.

Assembling the Pasties

Remove the pastry from the refrigerator and divide it into four equal portions of approximately 200g each. On a lightly floured surface, roll each portion into a circle roughly 25cm in diameter and about 4–5mm thick. Use a side plate or bowl as a template and trim around it with a sharp knife to achieve a neat, even circle.

Lay the pastry circle flat. On one half of the circle, layer the filling in this order, leaving a 2cm border around the edge:

• A layer of sliced potato
• A layer of diced swede
• A portion of the seasoned raw beef
• A scattering of chopped onion
• A small knob of butter (optional)
• An extra pinch of salt and pepper over the top

Brush the border of the pastry circle with a little water or beaten egg. Fold the unfilled half of the pastry over the filling to create a half-moon shape. Press the edges firmly together to seal, then crimp. The traditional Cornish crimp runs along the top of the pasty (the ridge), not along the side edge. To achieve this, stand the pasty upright on its sealed edge, then fold and twist the edge over itself repeatedly to create the characteristic rope-like crimp. This takes practice but even imperfect crimps hold together well enough for home cooking.

Cut two small steam vents in the top of each pasty with a sharp knife. Brush the outside of each pasty with beaten egg for a rich, glossy finish.

Cooking the Pasties in a Cast Iron Pan

The Hob-Start Method

This is where cast iron truly earns its place. Preheat your oven to 200°C / 180°C fan / Gas Mark 6. Place your cast iron skillet over a medium heat on the hob. Once it is hot — test by holding your hand a few centimetres above the surface — add a small amount of oil or butter and place one or two pasties (depending on the size of your pan) flat-side down into the skillet.

Allow them to cook on the hob for approximately 3–4 minutes without moving them. You are setting the base of the pastry, creating a firm, golden crust that will not absorb moisture from the filling during the longer oven cook. Listen for a gentle sizzle; if the pan is spitting aggressively, reduce the heat slightly.

After 3–4 minutes, carefully transfer the entire cast iron pan into the preheated oven. Cook for a further 45–50 minutes until the pastry is deep golden brown and the filling inside is fully cooked through. The total cooking time of around 50–55 minutes ensures that even the raw beef and hard root vegetables are fully tender.

Moving Forward

Once you have the fundamentals in place, the possibilities open up considerably. The UK offers fantastic opportunities for anyone interested in this hobby, and with the right foundation you will be well placed to make the most of them.