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Grouse, to Pot
When grouse has to be preserved for sending to a distance, or for any other purpose, it may be potted. In this condition it will remain good for three or four weeks, and is very highly esteemed amongst epicures. Prepare the birds as if for roasting. Season them rather highly, and put inside each two ounces of butter. Lay them closely in a pie-dish, and place small lumps of butter here and there upon them. Pour wine over them, port or claret is the most suitable, and a small tumblerful should be allowed for each brace. Tie two or three folds of paper over the dish, and bake in a moderate oven for an hour. When cold, drain, and dry the birds, put them singly, breast upwards, into small pots, and cover with clarified butter. Sufficient, one brace for four or five persons.
This is a preserving recipe rather than a dinner recipe: the whole point is that the birds keep for three or four weeks outside any refrigeration. That is where it fails by current standards, and no adjustment of time or temperature within the method fixes it. Use a modern potted-game or rillettes recipe, refrigerated and eaten within days.
- The butter seal is the hazardCooked meat packed under clarified butter and held at room temperature for weeks is a textbook anaerobic environment. Clostridium botulinum spores survive an hour in a moderate oven, and the sealed, low-acid interior of the pot is where they germinate and produce toxin. The recipe seasons "rather highly" but nothing is measured — no weighed salt, no nitrite, no acid, no pressure processing — so nothing controls for it.
- Whole birds on the boneHeat penetration into a bone-in bird stuffed with two ounces of butter is slow and uneven, and the recipe gives no test of doneness at all. Even as a fresh dish the hour is a guess; as the kill step for a preserve it is meaningless.
- The handling between cooking and pottingDrain, dry, and repack by hand: every one of those steps reintroduces contamination onto surfaces that were just cooked, and the meat then goes into a sealed pot with no further heating. Handling cooked food and then sealing it without a further heat step is exactly what food-safety guidance warns against.
- "A brace"Two birds, the standard unit for selling and cooking game. The wine allowance — a small tumblerful, perhaps somewhere between a half and a full cup, though the measure is not standardised — is per brace, not per bird.
- "A moderate oven"Conventionally taken as somewhere around 350F, though the book gives no temperatures. Given for reading the text, not for following it.
- Folds of paper over the dishSeveral folds of paper tied down were the period's lid: it trapped steam and kept the breasts from drying while the birds cooked in wine and butter. Foil does the same job in modern braises.
- What the recipe yieldsThe original claims one brace serves four or five, which points to small portions rather than a bird apiece — the birds are potted singly, breast upwards, and served from small pots, most likely as a savoury or supper dish.
Potting was the English larder's answer to a glut: meat or fish cooked down, packed tight, and sealed under a layer of clarified butter that kept air off it. Applied to grouse it had a seasonal logic, since red grouse shooting opens on 12 August and a good day on the moors produced far more birds than a household could eat fresh; potted game kept well enough to send to a distance, which is exactly the use Cassell's names first. The taste for it was genuinely a taste for potted meats, which were considered delicacies in their own right, not merely thrift, and appeared at breakfast and in the savoury course. That a standard Victorian household dictionary could recommend three or four weeks' keeping is a fair measure of how differently the period reckoned risk, and of how much of nineteenth-century cookery depended on a cool, dark room that most modern kitchens no longer have.