Cottage pie is minced beef cooked in gravy with onion and carrot, topped with mashed potato and baked. It is identical in method to shepherd’s pie and different in one respect: the meat.
The naming, settled
- Cottage pie — beef.
- Shepherd’s pie — lamb, because shepherds keep sheep.
Cottage pie is the older term, appearing in print in 1791. “Shepherd’s pie” is not recorded until the 1870s, and the lamb distinction settled later still. So the beef version has the historical claim, and it is the one most often called by the wrong name.
The cottage
The name is literal and slightly bleak. A cottage was the dwelling of a rural labourer, and the dish is named after the people who ate it. Its rise coincides precisely with the point at which the potato became cheap and widely grown enough in Britain to replace a pastry crust — which was a genuine change in what poor households could put on a table.
Making it
The method rewards patience in the filling:
- Brown the beef mince properly, in batches, so it colours rather than steams.
- Soften onion, carrot and celery; add garlic and tomato purée.
- Deglaze with a splash of red wine or ale.
- Add beef stock, Worcestershire sauce, a bay leaf and a teaspoon of Marmite if you have it, and simmer until thick.
- Cool slightly, top with mashed potato spread to the edges, fork the surface, and bake until browned.
The single most common failure is a filling that is too wet, which lifts the potato and floods the plate. It should be thick enough to hold a spoon mark before the topping goes on.
The variations
- Cumberland pie — with breadcrumbs or cheese in the crust.
- Cheesy mash topping — widespread, and unarguable if you like cheese.
- Sweet potato or celeriac mash — a modern substitution that traditionalists regard with suspicion.
- Cottage pie with a suet crust — an older variant, closer to a proper pie.
The leftovers question
Cottage pie belongs to the British domestic tradition of using everything — Sunday’s beef minced on Monday, extended with vegetables and gravy. That tradition also gives us bubble and squeak, and between them they account for most of what happened to a roast joint before refrigeration was common.
It reheats extremely well, which is a large part of why it remains a staple of British batch cooking, school canteens and freezers.