---
title: "Chilean Chemilico Sandwich — Homemade Steak, Onion, and Egg Recipe"
description: "The chemilico is one of the lesser-known sandwiches in the diverse category of Chilean gastronomy. It's a more contemporary recipe, but no less delicious for it."
url: https://www.chileanfoodrecipes.com/homemade-chemilico-sandwich-recipe/
date: 2024-07-18
modified: 2026-06-29
author: "Carlos Uhart M."
image: https://www.chileanfoodrecipes.com/wp-content/uploads/2024/07/Homemade-Chemilico-Sandwich-Recipe.jpg
categories: ["Sandwiches"]
tags: ["Sandwiches"]
type: post
lang: en
---

# Chilean Chemilico Sandwich — Homemade Steak, Onion, and Egg Recipe

[Versión en Español](https://comidaschilenas.com/receta-facil-chemilico/)

![Homemade Chemilico Sandwich Recipe](https://www.chileanfoodrecipes.com/wp-content/uploads/2024/07/Homemade-Chemilico-Sandwich-Recipe.jpg)*Homemade Chemilico Sandwich Recipe*

The chemilico is a Chilean sandwich of thin beef steak, soft caramelized onion, and a fried egg with a runny yolk on a toasted marraqueta roll — 10 minutes of prep and 20 minutes of cooking for 2 sandwiches. Each serving provides approximately 600 calories.

The runny yolk is the defining feature: it breaks when the sandwich is pressed or bitten, mixing with the meat juices and onion into a sauce that holds the whole sandwich together.

## How to Make a Chemilico Sandwich?

The chemilico has three components cooked in sequence in a single pan: caramelized onion first (10 minutes over medium heat until soft and golden), then the steak slices (2 minutes per side over high heat — thin enough to cook fast without drying out), then the fried egg in the same pan with residual fat (medium heat, no lid, until the white is set and the yolk is still liquid). The order matters: the pan absorbs the onion sweetness and beef juices from one step to the next, building a layered flavor in each component without needing a sauce.

## Nutritional Information

Each serving of chemilico sandwich contains approximately 600 calories, 50 g of carbohydrates, 30 g of fats, 35 g of proteins, 3 g of fiber, 2 g of sugars, and 800 mg of sodium.

## Chemilico Sandwich Recipe

**Prep Time:** 10 minutes

**Cook Time:** 20 minutes

**Servings:** 2

### Ingredients

- 400 g beef steak (lomo or similar thin-cut), sliced thin
- 2 marraqueta or frica bread rolls
- 2 eggs
- 1 large onion, thinly sliced into half-rings
- Oil for cooking
- Salt, pepper, and garlic powder to taste

### Instructions

1. Heat a drizzle of oil in a non-stick skillet over medium heat. Add the thinly sliced onion and cook for 10 minutes, stirring occasionally, until soft and lightly golden. Season with salt and pepper, remove from the pan, and set aside.
2. Increase the heat to medium-high. Season the beef slices with salt, pepper, and a pinch of garlic powder. Add to the same pan and sear for 2 minutes per side — the slices should be cooked through but not overcooked or dry. Remove and keep warm.
3. Reduce the heat to medium. Add a small drizzle of oil to the pan and fry the eggs one at a time. Cook until the white is fully set but the yolk remains completely runny — do not flip, do not cover. Remove carefully.
4. Split the marraqueta rolls in half and toast briefly in the same pan or in a toaster until lightly crisp on the cut surface. Assemble each sandwich: layer the beef slices, caramelized onion, and the fried egg. Serve immediately — the yolk should burst when pressed. Optionally accompany with a small portion of French fries.

## Additional Tips

### The yolk must be runny — cook the egg over medium heat, not high

The runny yolk is not optional decoration — it is the sauce of the chemilico. When the sandwich is pressed between the hands before the first bite, the yolk breaks and runs through the meat and onion layers, binding everything with a rich, fatty liquid that no added condiment replicates. To keep the yolk runny reliably: use medium heat (not high), do not cover the pan (steam from a lid cooks the yolk from above), and remove the egg as soon as the white loses its translucency at the edges of the yolk. On a home gas burner, this takes approximately 3 to 4 minutes. Slide the egg directly onto the steak layer in the sandwich rather than setting it down on a plate first — the yolk is at its most fragile immediately out of the pan.

### Slice the onion thin and cook it slowly — 10 minutes is the minimum

The onion in a chemilico should be soft, collapsed, and lightly golden — not raw, not crispy, and not deeply caramelized to a brown jam. The 10-minute cook over medium heat is the correct window: the onion softens and its natural sugars begin to develop without reducing to a sticky concentrate. Slicing thin (2 to 3 mm) ensures every piece cooks evenly in that time. If the onion is still opaque and firm after 5 minutes, the heat is too low — increase slightly. If it is browning and sticking before 8 minutes, the heat is too high — reduce and add a tablespoon of water to the pan to slow the cooking.

### Slice the steak thin and cook it fast — thick slices go tough

The beef for a chemilico should be cut to approximately 3 to 4 mm thickness — thin enough to cook through in 2 minutes per side without needing a longer cook that dries the meat out. If buying from a Chilean butcher, ask for lomo en filete fino (thin-sliced loin). If slicing at home, place the steak in the freezer for 20 minutes first — partially frozen meat slices much more evenly than room-temperature meat. High heat for the beef (immediately after the onion, in the same pan) is essential: the pan carries residual onion sweetness and fat from the previous step that coats the meat slices during searing.

| Ingredient | Substitution and result |
| --- | --- |
| Beef steak (lomo) | Pork loin (lomo de cerdo), sliced thin — valid but produces a different sandwich (closer to the Italian pork sandwich); cook 3 minutes per side |
| Marraqueta | Frica or hallulla — frica gives a softer, slightly sweeter texture; hallulla is denser and more neutral; both are authentic Chilean alternatives |
| Fried egg (runny yolk) | Scrambled egg — loses the defining yolk-burst element; the chemilico becomes a different sandwich structurally and in eating experience |
| Onion | Shallots — milder and sweeter; caramelize in 7 minutes instead of 10; appropriate substitution if onion flavor is too assertive |

## Frequently Asked Questions (FAQs)

### 1. What makes the chemilico different from other Chilean sandwiches?

The defining element is the runny fried egg — no other Chilean classic sandwich includes a fried egg with a liquid yolk as a structural component. The Barros Luco uses steak and melted cheese; the Barros Jarpa uses ham and cheese; the Chacarero uses steak with green beans, tomato, and chili. The chemilico’s egg yolk functions as an internal sauce that forms only when the sandwich is eaten, giving it a different eating experience from the others. The three-ingredient simplicity (steak, onion, egg) also distinguishes it from more loaded Chilean sandwiches — its quality depends entirely on the execution of each component rather than the complexity of the assembly.

### 2. What bread is used for a chemilico?

The traditional bread is the marraqueta — the ubiquitous Chilean white bread roll with a hard crust and soft interior, shaped as two connected lobes. It is the default bread for almost all Chilean street sandwiches. The frica (a softer, oval roll with a slightly sweeter crumb) is the most common alternative, particularly in central Chile. Both are toasted on the cut surface before assembly to prevent the bread from becoming soggy from the egg yolk and meat juices. Hallulla (a flat, round bread) is also used in some regions. Outside Chile, a crusty baguette-style roll is the closest structural equivalent to the marraqueta.

### 3. Is the chemilico the same as the Diputado sandwich?

Yes — the Diputado is the same preparation (thin steak, caramelized onion, fried egg with runny yolk on marraqueta) under a different regional name used in the Valparaíso region (Región de Valparaíso, Chile’s fifth region). The phenomenon of the same sandwich having different names in different Chilean cities is common: the Barros Luco is called “churrasco” in some regions, and the Italian pork sandwich has regional name variants as well. The origin of the name “chemilico” itself is disputed — some trace it to Argentina, while others point to the town of Chemilico in the Trujillo region of Peru as an etymological source.

### 4. What cut of beef works best for a chemilico?

Lomo (beef loin) sliced thin is the standard choice — it is tender enough to cook in 2 minutes per side and has sufficient fat marbling to stay juicy without a longer cook. Churrasco (a thin-cut steak from the rump or top round) is equally common and less expensive. Avoid thick cuts that require more cooking time, as they will be dry on the outside before the center is cooked at the temperatures needed for a good sear. The key is uniform thinness (3 to 4 mm) more than the specific cut — a well-sliced cheap cut outperforms a poorly sliced premium one in this preparation.

## What Is the Chilean Chemilico Sandwich?

The chemilico is a Chilean steak sandwich built on three components — thin beef, soft caramelized onion, and a fried egg with a runny yolk — served on a toasted marraqueta roll. It belongs to the Chilean sandwich tradition that encompasses some of the most distinctive sandwiches in Latin America: the Barros Luco (steak and melted cheese), the Barros Jarpa (ham and melted cheese), the Chacarero (steak with green beans, tomato, and chili), and the completo (hot dog with avocado, tomato, and mayonnaise). The chemilico is considered a more contemporary entry in this canon — less formally named, with a disputed etymology, and known under the alternate name “Diputado” in the Valparaíso region. What distinguishes it within the Chilean sandwich family is the runny yolk, which creates an internal sauce when the sandwich is pressed, and the simplicity of having only three filling ingredients, each of which must be executed correctly for the sandwich to work.

## History of the Chemilico in Chile

The origin of the chemilico’s name is genuinely uncertain. The most commonly cited theories are a connection to Argentina (where similar steak-and-egg combinations appear in the Buenos Aires street food tradition) and the Peruvian locality of Chemilico in the Trujillo region, which some food historians suggest as the etymological source via migration and food exchange across the Andes. The “Diputado” regional variant in Valparaíso follows a broader Chilean naming pattern in which sandwiches receive political nicknames — the Barros Luco was named after Chilean president Ramón Barros Luco, and the Barros Jarpa after a political family. Chile’s sandwich culture as a whole has deep roots in the mid-19th century railway era: when the Santiago-Valparaíso railway opened in 1851 — one of the first in South America — the multi-hour journey with brief station stops created a market for portable, affordable food sold to passengers. These “panes de viaje” (travel breads), made from tortilla de rescoldo filled with cheese, pork loin, pork roll, or malaya, are the direct predecessors of the modern Chilean sandwich tradition. The chemilico’s simple steak-and-egg structure connects it to the working-class street food culture that dominated Santiago’s fondas and fuentes de soda throughout the 20th century.

## Did you know?

Chile is often described as having one of the most varied and developed sandwich cultures in the world — a claim with some basis in the historical record. The 1851 inauguration of the Santiago-Valparaíso railway created what is documented as one of the earliest commercial portable food markets in Latin America, when vendors at station stops sold filled bread rolls to passengers during the several-hour journey. The tortilla de rescoldo (ash-baked flatbread) filled with pork and cheese was the founding product of this tradition. By the early 20th century, Santiago’s fuentes de soda (soda fountains, the Chilean equivalent of a diner) had developed a distinct sandwich menu that included many of the classics still served today. The chemilico and its Valparaíso cousin the Diputado are among the youngest entries in this tradition — products of the 20th-century urban food culture rather than the railway era — but they draw on the same combination of steak and bread that has defined Chilean street food for over 150 years.

## Recommended

- [Italian pork sandwich](https://www.chileanfoodrecipes.com/homemade-italian-pork-loin-sandwich-recipe/)
- [Sopaipillas pasadas](https://www.chileanfoodrecipes.com/recipe-for-chilean-sopaipillas-pasadas-with-chancaca/)
- [Arrollado de malaya](https://www.chileanfoodrecipes.com/arrollado-de-malaya-recipe/)
- [Barros Jarpa recipe](https://www.chileanfoodrecipes.com/barros-jarpa-sandwich-recipe/)