Lancashire Hotpot
Northern English layered casserole: lamb and onions sealed under overlapping discs of potato that crisp golden in the oven while the stew braises beneath. Slow-cooked, frugal, and the textbook example of how three ingredients become greater than their sum.
Overview
The defining dish of the north-west of England, the one-pot supper invented to feed mill workers in the cotton towns of Lancashire from a single tough cut of lamb and a layer of potatoes. You layer lamb shoulder or middle-neck chunks with onions and stock in a deep dish, top with overlapping slices of waxy potatoes that protect the meat below while crisping golden above, and put the whole thing into a low oven for hours. Time and gentle heat do the rest: the lamb tenderises, the onions melt down into the gravy, the potato top crisps into a thatched roof of pale brown discs. Eaten with pickled red cabbage on the side, exactly as it would have been on a Pendle table a hundred years ago.
Ingredients
- 700 g lamb shoulder (or middle-neck, cut into 3 cm chunks)
- 2 tablespoons plain flour
- 2 tablespoons vegetable oil
- 2 onions (sliced)
- 2 carrots (sliced)
- 1 tablespoon Worcestershire sauce
- 1 teaspoon fresh thyme leaves
- 500 ml lamb (or beef stock)
- 1 kg waxy potatoes (Charlotte or similar), peeled and sliced 5 mm thick
- 50 g unsalted butter (melted)
- salt
- pepper
Method
Stage 1 - Brown the lamb
- Heat the oven to 160°C (140°C fan).
- Toss the lamb in flour seasoned with salt and pepper.
- Heat the oil in a heavy ovenproof casserole and brown the lamb in batches. Set aside.
Stage 2 - Build the layers
- In the same pan, cook the onions and carrots over medium heat for 8 minutes.
- Stir in the Worcestershire and thyme.
- Return the lamb to the pan and pour in the stock. Bring to a simmer.
- Arrange the sliced potatoes in overlapping rounds across the surface, completely covering the lamb.
- Brush the potatoes generously with melted butter and season with salt.
Stage 3 - Bake
- Cover the casserole with a tight-fitting lid (or foil) and bake for 1 ½ hours.
- Remove the lid, increase the oven to 200°C (180°C fan), and bake another 30 minutes until the potatoes are deep golden and crisp.
- Rest 10 minutes before serving.
Notes
- Waxy potatoes hold their shape: Floury potatoes (Maris Piper, King Edward) crumble into the stock and turn it cloudy. Charlotte, Maris Peer or new potatoes keep their slices.
- Don't skip the butter brush: It's what crisps the top layer.
- Middle-neck of lamb is traditional: A bony cut that makes a richer braise. Shoulder is easier to find and works fine.
Storage
- Keeps 3 days refrigerated. Reheat at 180°C for 20 minutes (the top can be re-crisped under a hot grill for 2-3 minutes).
- Freezes well for up to 2 months; the potato top will need re-crisping after defrosting.
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