Sardines on Toast

Keep the oil. That is the instruction the dish hangs on: the liquid the sardines are packed in gets spooned over them and let run down into the slice rather than poured away. The bread is left open, a single slice not two, because a closed lid would trap the oil where the toast cannot take it up. The fish goes on barely touched, not mashed, so the warm oil has somewhere to pool and then soak from. The grill flash at the end loosens the oil and sends it down, not to brown the fish for its own sake. Drain the tin and you have made a different, drier thing; pour it over and the slice underneath does the work.

Treat the toast as the vessel and the rules fall out plainly. It is taken well past golden, dried through rather than merely coloured, firm enough to keep its shape under a knife. A pale slice goes to a wet sag the moment the warm oil reaches it; a properly dried one takes the oil up and still stands. Butter goes on while the slice is hot so it melts in and meets the fish oil rather than lying cold on top. The sardines stay whole or lightly broken, their soft flaking flesh wanted against the crisp surface and never worked to a paste, laid thin in one layer. With no top slice to balance a heavy load, the whole thing rests on oily fish and hot oil over plain firm toast, and a piled mound would slide off a slice with nothing pressing it down. The lemon or vinegar struck across at the close is structure, not garnish: oil under oil reads as one thick note until a sharp acid cuts a second line through it.

The fish itself is why this is a British supper and not a French one, even though the tin that made it possible came from France. Sardines packed in oil arrived cheaply enough to sit in any cupboard, and in Britain that cheapness pinned them to the bottom of the larder rather than the top of the menu. They were the tin you reached for when the week was thin, kept for the night the house held a loaf and little else, and that is the seat the dish has held since: late food, home food, made on a grill pan and eaten standing at the worktop with a knife and fork or folded once before the crisp goes. The name itself is open and plain, the single slice written into the title.

It leaves the grill too hot to lift, faintly hissing where the oil has gathered at the rim. The smell is forward and a touch fierce, hot fish oil and toast with the bright cut of a squeezed lemon over it, the kind that fills a small kitchen at once. The bite is crisp at the surface, then a layer down the toast has gone gold and yielding where the oil reached, two textures inside one slice. The fish is warm and salt and giving against the firm bread, the flesh parting under the teeth rather than snapping. There is real heat coming off it, none of the chill of a closed fish round.

The near kin is the sardine-and-tomato build, and the two are worth holding apart, because British shelves carry sardines in both oil and tomato sauce and the choice changes the dish entirely. Spread the tomato-sauced fish on toast and the sauce does the wetting the oil does here, sweet and red where this is plain and salt, and the slice leads on that sauce rather than on the slick of warmed tin oil. The closed sardine sandwich is a separate thing again, two slices with the oil shut out and the fish mashed thrifty, built on economy where this is built on the oil. Each holds its own page; this one is specifically the oil-packed tin, tipped on whole, grilled open.

Origin and history

Putting fish on hot bread has no inventor and no first morning, so the firm dates sit with the tin and with the years tinned fish mattered most to British cupboards. The clearest of those years is wartime. When the points-rationing scheme came in across Britain in late 1941, tinned fish was among the very first goods placed on points alongside tinned meat and tinned beans, and tinned salmon was notoriously dear in points, so the household leaned on the cheaper tins, sardines and pilchards among them. Fresh fish was never rationed but ran scarce, since the boats that landed it were sailing past submarines, and a sealed tin on the shelf asked nothing of a Friday queue.

The supper opened up in earnest just after. Once rationing eased but fresh fish stayed short, an influx of cheap tinned sardines and pilchards reached British shops, and a generation took them home to a grill pan. The childhood plate many people in Britain still describe, sardines warmed on toast for tea, dates to those post-war years rather than to any grand restaurant table.

The tin behind all of it traces to Nantes. Pierre-Joseph Colin, working from a canning works in the city, put the new airtight preserving method to sardines packed in oil around 1820, and the product was novel enough that the 8 June 1822 edition of the local paper, the Journal de Nantes et de la Loire Inferieure, called it an invention precieuse. By 1835 his works was turning out some thirty-six thousand tins a year, and that oil-packed sardine is what crossed the Channel into British larders through the century that followed.

The British names on the shelf came later and grew up around salmon, not sardines. The firm that became John West began as Pelling Stanley and Company in Liverpool in 1857, bought the rights to the John West name in 1888, shipped its first John West salmon in 1892, and was folded into John West Foods under Unilever by 1964, by which point its tins, sardines included, were a fixture of the very cupboards this supper comes out of. Continental tins sat beside them; Marie Elisabeth, a brand that dates its sardine packing to 1880, is one such import. None of them invented the slice. They only kept the tin on the shelf so a cook with a loaf and a grill could keep making it.