Bocadillo de Escalivada

The name of this sandwich is a cooking instruction. Escalivar is the Catalan verb for cooking something directly in the embers, from caliu, the bed of glowing ash a wood fire leaves behind, and escalivada is what that fire does to aubergine, peppers, and onion: blackens the skins, steams the flesh soft and sweet inside, and works smoke all the way through. Pack that into bread and the smoke is why the sandwich exists at all. It is one of the few cold vegetable bocadillos in Spain that needs no apology, because the char gives it a depth a raw salad roll never has.

The technique is unforgiving in one specific way. Whole vegetables go over coals or into a fierce oven until the outsides are properly burnt and collapsing, and the skins are then pulled off by hand. They are not rinsed, because water carries the smoke straight down the drain, which is the single mistake that turns escalivada into plain roasted veg. The flesh is torn lengthwise into ribbons, salted, and dressed with good olive oil and sometimes a spoon of the dark juices the roasting threw off. Aubergine goes silky, pepper goes slippery, onion goes soft and sweet, and the three stay distinct in the mouth rather than collapsing into one paste.

Building the roll is a contest between moisture and crust. The escalivada wants to be drained before it goes anywhere near bread, because the vegetables hold water and the oil they sit in soaks fast; a Catalan barra or a rough country loaf is split and frequently wiped inside with oil first, so a thin fat barrier stands between the wet filling and the open crumb. Get it right and the crust holds its snap around a yielding, smoky middle for the time it takes to eat. Get it wrong and the loaf goes to a slick, sagging thing within minutes, the crumb grey and wet, the whole point lost to a puddle.

Anchovy is the addition that defines the canonical version. Laid in salt fillets across the vegetables, it turns a gentle smoky roll savoury and sharp, the brine cutting the sweetness of the pepper, and escalivada amb anxoves is a fixed pairing rather than a flourish. Other hands reach for a smear of all-i-oli for garlic heft, a few olives, or a slab of grilled or canned tuna to make a fuller meal of it. None of these change what the sandwich is. The vegetables and their fire are the constant; everything laid alongside is answering the smoke, not replacing it.

Bite a cold one and the first thing is olive oil, then the smoke, then the soft give of the aubergine and the slither of pepper, with the salt of the anchovy arriving in a hard line through the middle. Barely warmed, the oil loosens and the char comes forward, which is how many prefer it. The crust breaks with a short snap and the filling has no crunch of its own, no sauce that runs hot, just a cool smoky weight in the hand. It is built to be eaten standing at a bar with a beer, or unwrapped from foil hours later, holding its texture better cold than most fillings manage.

It sits among the vegetable bocadillos but apart from the blandest of them. The supermarket bocadillo vegetal, the cold-buffet roll of lettuce, tomato, and sliced egg, shares the word vegetable and almost nothing else, since it has no fire in it anywhere. Closer kin are the single-vegetable Catalan rolls, the grilled-aubergine or roasted-pepper bocadillo, which take one element of the escalivada and leave the rest. Across the old Crown of Aragon the same charred-vegetable mix turns up as a relish beside grilled fish and as a partner to pa amb tomàquet; the bocadillo is just that relish given a loaf to live in.

A vegetable cooked in the ashes

Nobody invented escalivada and nobody dated it. It is a peasant technique from the era when a kitchen was a wood fire, the obvious thing to do with a glut of summer aubergines and peppers when the embers were already there: bury them in the ash, let them char, scrape off the skin. The verb escalivar records the method so plainly that the dish carries its own recipe in its name, and the practice is claimed across a wide territory, Catalonia and Valencia chiefly, with Roussillon over the French border, Murcia, and Aragon all cooking versions of it.

The sandwich is younger and simpler to account for, because it is only the relish put in bread. Once escalivada was a fixed part of the Catalan and Valencian table, eaten as a starter, a side, and a topping for coca, folding it into a split roll needed no invention and left no record; it is the everyday lunch the same kitchens already had the components for. The anchovy that so often goes with it is the standing companion of the dish wherever it is served cold.

Where it lives now is the bar counter and the lunchbox of eastern Spain. It is almuerzo food, the substantial mid-morning eating of the Valencian and Catalan lands, ordered at a counter that otherwise leans hard on ham and chorizo. The roll is the casual end of a relish that also gets plated as a starter and spread on grilled bread, the same charred vegetables doing duty in three registers at once. The buried-in-the-ashes method the verb describes long outlasted the open hearths it was named for, surviving on gas burners and in hot ovens that mimic what a wood fire once did for nothing.