🇪🇸 Spain · Family: Bocadillo de Embutido · Heat: Griddled · Bread: barra · Proteins: morcilla
The Bocadillo de Morcilla is a blood-sausage sandwich, and which morcilla goes in changes the whole character of it. Spanish morcilla varies by region: some are bound with rice, some with onion, some studded with pine nuts or spiced with cinnamon and clove. Sliced or crumbled and most often griddled before it goes into bread, morcilla makes one of the richest, most savory bocadillos in the canon, and a national one rather than a single regional dish.
The build hinges on cooking the sausage right. Morcilla is fully cooked when you buy it, but a bocadillo wants it hot and crisped rather than simply warmed through. It is either sliced into rounds and seared on a plancha until the edges caramelize and the surface firms, or split from its casing and crumbled into a hot pan so it browns in its own fat. Then it goes into a split barra or roll, often with the crumb left bare so it can take a little of the rendered fat. Done well, the morcilla has a crisp exterior and a soft, spiced, almost creamy interior, the bread is crusty enough to contrast it, and the richness is checked by something sharp. Done badly, the sausage is cold and pasty in the center, the casing is left on and goes chewy, or the fat is never rendered and the whole thing sits heavy and greasy.
That sharp counterpoint is where most variation lives. Sweet fried green peppers are the classic partner, their mild bitterness and give cutting the iron-rich fat; caramelized onion does similar work. A fried egg over crumbled morcilla turns it into a more substantial plate-adjacent bocadillo. The rice-bound, smoky morcilla de Burgos is the most famous regional version and behaves differently enough in a sandwich that it deserves its own article rather than being crowded in here. Across all of them the principle is the same: render the fat, crisp the surface, give the richness something bright to push against, and put it on bread that can hold up.
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Other Bocadillo de Embutido sandwiches in Spain: