🇦🇷 Argentina · Family: Lomito · Heat: Grilled · Bread: pan-frances · Proteins: beef, egg
The Lomito con Huevo is the Argentine tenderloin sandwich with a fried egg laid over the meat, a single addition that sits between the bare común and the fully loaded completo. The angle is one ingredient doing a lot of work: the egg adds richness and a running yolk without the full pile of ham, cheese, and salad, so the sandwich hinges on the interplay of two things, the seared lean tenderloin and the soft egg, and on whether the yolk is cooked to bind the bite rather than set hard or run raw. Get it right and the yolk slicks the meat and the bread into one cohesive mouthful. Get it wrong and the egg is a rubbery disk on top of dry steak, adding bulk but no glue.
The build is the standard lomito with the egg as its defining move. The bread is a substantial roll, pan francés or a wider sandwich loaf, split and toasted or warmed so it holds against the yolk. The lomo is tenderloin, sliced thin and grilled fast over high heat or seared on a plancha, kept pink inside because the lean cut dries quickly. It goes into the bread hot, and a fried egg is set over it, the yolk ideally left runny so it breaks and runs down through the meat and into the bread when bitten. Often a slick of mayonnaise or a sauce goes on, and sometimes lettuce and tomato, but the egg is the point and the build stays lighter than the completo. Good execution keeps the tenderloin seared and juicy, the egg white fully set but the yolk liquid, the bread firm enough that the running yolk soaks in without dissolving it. Sloppy execution overcooks the lean meat, hard-fries the egg until the yolk is dry and crumbly, or breaks the yolk too early so it cooks flat on the griddle and adds nothing to the bite.
It varies mostly by what else joins the egg. Kept tight it is meat, egg, and bread, the egg carrying the richness alone. Add ham, cheese, lettuce, tomato, and mayonnaise and it tips over into the completo; strip the egg back out and it returns to the común. Some hands add cheese alongside the egg without going the full loaded route, which sits between the two registers. The con huevo is the middle step of the lomito family, the single deliberate addition that separates the plain build from the maximal one, and both the bare and the loaded versions it sits between deserve their own treatment.
More from this family
Other Lomito sandwiches in Argentina: