Chivito

Steps

1. pound6 min
   room temperature
   beef cut into 4 portions, each pounded between plastic to a scant 1/4 inch + salt + black pepper — thickness is the whole cut argument settled: at a quarter inch the steak browns and cooks through in the same two minutes, so you never have to choose between a grey interior and a pale crust. Slice tomato, tear lettuce, slice olives now; once the pan is hot there is no idle time
2. fry8 min
   cold pan, medium, turning once
   bacon laid in a dry cold skillet so the fat renders out before the meat tightens — a hot start seizes the strips into curls and leaves raw fat behind. Pull to a plate and leave the rendered fat in the pan; it is the cooking medium for everything that follows and the reason the components taste like one sandwich instead of four
3. saute2 min
   medium, bacon fat
   ham slices, just until the edges ruffle and blister — this is warming, not cooking. Cold ham straight from the package is the most common cause of a chivito that eats lukewarm in the middle. Set aside with the bacon
4. toast2 min
   cut side down, medium
   split rolls pressed into the bacon fat until the cut faces are dry and gold — a sealed, toasted crumb is structural insurance, not garnish. This sandwich carries steak juice, mayonnaise and a broken yolk at once, and untoasted bread turns to paste before you finish it
5. sear5 min
   high heat, uncrowded, 2 to 3 minutes per side
   + olive oil, then steaks laid in with space between them, turned once. Wait for the oil to shimmer; a pan that only sizzles politely will steam the beef and no crust forms. Do not press or fuss the steaks — the crust is sugar and protein setting against dry metal, and moving them resets the clock
6. top2 min
   off direct heat, covered
   seared steaks + mozzarella slices laid on top, pan pulled off the burner and lidded so residual heat from the meat melts the cheese downward into the crust. Melting the cheese separately and dropping it on later gives you a slick sheet that slides out on the first bite instead of gluing the stack together
7. fry3 min
   medium-low, remaining fat
   eggs cracked into the same pan, cooked until the whites are set and the yolks still loose. Medium-low matters: high heat sets the yolk before the white finishes, and the runny yolk is a working part of the sandwich, functioning as a second sauce alongside the mayonnaise
8. top2 min
   serve immediately, uncut or halved
   toasted roll + mayonnaise on both faces + cheese-topped steak + ham + bacon + fried egg + tomato + lettuce + sliced olives = chivito. Cold vegetables go on last, against the top face, so they stay crisp and cool rather than wilting into the hot stack — the temperature contrast is the design. Serve at once with fries; this sandwich is never rested or pressed