Egg and Chive

Egg-mayonnaise tires the palate, and egg and chive is the British answer to that. Hard-boiled egg held in mayonnaise is rich, mild, and faintly sulphurous, and that sulphur is the note that grows heavy as the sandwich goes on, until a filling that started gentle reads as flat fat. Snipped fine and worked all the way through the bound egg, the chive draws a thin allium line across the filling that keeps the sulphur in check and holds the egg bright from the first bite to the last. The herb earns its name on the label by adding the least and changing the most, a garnish-sized handful of green that keeps a plain filling from going dull halfway down.

The proportion has to land before the herb does anything. Egg is chopped, not mashed, so the filling keeps a little grain, and it is held with just enough mayonnaise to cohere, since too little falls out the cut and too much slumps to a slick. That margin is narrow because the filling is so bare that a misjudged bind has nowhere to hide. Salt and white pepper go through the egg in the bowl, where they can season every piece, never onto the assembled bread. The chive is then folded in rather than scattered on top, so each mouthful carries the same measured green rather than a clump at one end and none at the other.

Restraint with the herb decides the whole thing. Cut too sparingly and the chive vanishes under the fat and the egg goes back to reading as plain; cut too freely and a gentle filling turns sharply oniony, a different and worse sandwich. The length of the cut matters as much as the amount, because a chive sliced too long gives a stringy bite that catches in the teeth, while one snipped fine releases its scent and disappears into the bind. The bread is soft and plain, buttered corner to corner so the crumb resists a filling that is, by design, a little wet, then pressed and cut so the flecked egg holds a tidy face instead of weeping down the side.

Egg and chive lives almost entirely in the British packaged-sandwich trade, which is worth naming because it shapes the recipe. Made fresh, it is a tea-tray and lunch-counter filling assembled the same hour and eaten soon. As a chiller-cabinet product it is engineered to hold for a working day in a sealed plastic wedge, and the chive is folded through the bind rather than laid on top precisely so it cannot wilt against the bread before the triangle is sold. The Pret counter and the supermarket fridge are where most Britons actually meet it, between other things, on a Tuesday, set against a packet of crisps and a drink.

Its nearest relative carries the better-documented past. Egg and cress runs a peppery mustard seedling against the same bound egg, a sharper and leafier counter than the allium, and it is the version British Rail tried to standardise. A catering specification issued in November 1971 by Bill Currie, the railway's Director of Rail Catering, fixed the build down to the filling: each egg-and-cress sandwich was to carry one-twelfth of a punnet of cress, no more. The garnish on egg and chive is no different in spirit, a measured allium where the railway counted out a measured leaf. The chive sits at the gentle end of that range on purpose, the soft onion note milder than the cress, the watercress, or the older tang of salad cream that other egg builds reach for.

The cut face shows it before the nose does, a pale flecked mass of bound egg shot through with green. The bread gives without resistance, then the egg arrives cool and smooth and rich against the lip, the mayonnaise slick, the white pepper warming the back of the bite a beat behind. The green flecks are where the texture changes, a faint catch in an otherwise uniform soft mass, and what you taste last is the chive, pulling the fat back to a clean finish so the next mouthful starts fresh rather than piling on the one before.

The herb and the shelf

Egg and chive was never invented on a particular day, because it joins two old British habits: boiled egg turned into a cold filling for bread, and the snipping of a kitchen-garden herb over it for lift. Neither has a clean date of birth, so the honest record is the date of each half rather than the pairing. The herb is the older and firmer story.

Chives are Allium schoenoprasum, the smallest cultivated onion relative and the only species of Allium native to both the Old World and the New. They grew in European kitchen gardens through the Middle Ages, by most accounts carried west from China in the late thirteenth century, and Carl Linnaeus fixed the botanical name in Species Plantarum in 1753. Through all of it they were valued for one thing the sandwich leans on directly: an onion flavour without an onion's bite. Cut young and used raw, they bring the allium note the egg wants while staying well short of the squeak of a raw onion ring.

The form most Britons eat is barely two generations old. In early 1980 Marks & Spencer put the first supermarket packaged sandwiches in Britain on sale, beginning in five shops with wedge-shaped sealed boxes and a short menu that put egg and cress on the shelf from the start, the whole range opening at around 43p. The trial reached more than a hundred stores within a year, and the bound-egg filling, chive folded in so it survives the wedge, settled in as one of the fixed cheap mains of that trade alongside the chicken and the tuna. So the two halves sit a long way apart in time. The egg filling is a farmhouse habit older than any cookbook, and the herb on it was carrying its Linnaean name by 1753, yet the sealed triangle that put the pairing in front of the whole country, sold for a few pounds beside the crisps, is younger than many of the people eating it.