A terrine de campagne is, in construction, nearly identical to pâté de campagne — the same forcemeat, the same seasoning, the same garnish. The distinction is the vessel: a terrine is cooked and served in its earthenware or enamelled cast-iron mould (the terrine itself), while a pâté is unmoulded. This is not a trivial difference — the mould protects the forcemeat during cooking, producing a moister, more evenly cooked result, and the presentation slice shows the terrine's distinctive cross-section: caul fat exterior, coarse forcemeat interior, often with a central inlay of liver, pistachios, or strips of ham. The mould is lined with blanched bacon rashers or caul fat, with enough overhang to fold over the top. The forcemeat is packed in firmly, pressing out air pockets with the back of a spoon. The lid is placed on (or aluminium foil sealed over), and the terrine bakes in a bain-marie at 160°C. The water in the bain-marie should come two-thirds up the mould's sides. When the internal temperature reaches 68°C — check through a gap in the lid — the terrine is removed, weighted (a board with a 1kg weight on top), and cooled overnight. The weight compresses the forcemeat as it cools, expelling excess fat and air, and producing a dense, sliceable result. The terrine improves over 2-3 days as the flavours meld. Serve at cool room temperature with cornichons, Dijon mustard, and country bread.
Cook and serve in the mould — the vessel IS the dish. Line with bacon or caul fat for fat basting. Bain-marie at 160°C, water two-thirds up the sides. Internal temperature target: 68°C. Weight and cool overnight — compresses, expels air, creates clean slice.
Place a folded tea towel in the bottom of the bain-marie tray before adding the terrine — this insulates the base and prevents the bottom from overcooking. For the cleanest cross-section, chill the terrine thoroughly before slicing with a sharp, thin knife dipped in hot water between cuts. A thin layer of clarified fat poured over the cooled surface before refrigerating seals the terrine and extends its life to 10 days.
Not pressing firmly enough when packing — air pockets create unsightly holes in the slice. Skipping the bain-marie — the edges overcook before the centre reaches temperature. Not weighting — the terrine will be loose, crumbly, and full of air gaps. Serving immediately — terrines need 48 hours for flavour development.
Larousse Gastronomique; Grigson, Charcuterie and French Pork Cookery; Charcuterie (Ruhlman & Polcyn)