Photo: Chasqui (Luis Tamayo) · CC BY-SA 2.0
Lomo Saltado (Beef Stir-fry)
Beef stir-fried hot with red onion and tomato in soy and vinegar, served with crispy french fries and white rice — Peru's beloved saltado. Born where Chinese wok cooking met Peruvian ingredients, its smoky sauce soaks into the fries and rice.
Ingredients
- Beef · sirloin or tenderloin, in thick strips400 g
- Red onion · thick strips1
- Tomatoes · in wedges2
- Aji amarillo · or hot chili1
- Minced garlic3 cloves
- French fries2 cups
- Cooked rice · to serve2 bowls
- Cooking oil2 tbsp
- Cilantro · to finish
- Sauce
- Soy sauce3 tbsp
- Red wine vinegar · or vinegar2 tbsp
- Salt & pepper · to taste
Steps
- ⏲ 10 min
Cut the beef into thick strips and season with salt and pepper. Have the french fries crisp and ready (air fryer, oven, or fried).
- ⏲ 3 min
Cut the red onion into thick strips, the tomato into wedges, and slice the chili.
- ⏲ 2 min
Heat a pan or wok very hot, add oil, and sear the beef fast over high heat just until browned outside, then remove.
- ⏲ 1 min 30 sec
In the same pan, stir-fry the red onion, garlic, and chili over high heat, keeping them crisp.
- ⏲ 1 min
Add the tomato, then pour the soy sauce and vinegar around the edge of the pan for that smoky wok aroma.
- ⏲ 1 min
Return the beef and fries and toss quickly — don't overcook or the fries go soggy.
Scatter with cilantro and serve with white rice.
Variations
- Pollo saltado: Use chicken instead of beef.
- Saltado de mariscos: A seafood version with shrimp and squid.
- Fries on the side: Serve the fries alongside instead of tossed in.
- Spicier: Add aji amarillo paste for more heat.
Tips
- Get the pan screaming hot and cook fast — the wok char (wok hei) is the point.
- Don't crowd the beef; sear it quickly to lock in the juices.
- Add the fries last so they don't turn soggy.
- Pour the soy sauce and vinegar around the edge of the pan to release the aroma.
More detail and the reasons why (4)
- "Sear it to lock in the juices" is the one line above that is not true. A browned surface is porous, not a seal, and seared meat loses slightly more water than unseared, not less. Cooking meat gives the real model: heat contracts the muscle fibres and squeezes moisture out, so for thin cuts the rule is "the hottest pan you can manage and the shortest time you can manage" — everything after that is moisture lost. Which is exactly what this recipe does, and the searing is for flavour: the beef goes in for two minutes, comes out, and only returns at the very end. The juiciness comes from the total time on the heat being about three minutes, not from a crust holding anything in.
- Everything is cut thick on purpose. Beef in thick strips, onion in thick strips, tomato in wedges — in a pan this hot, thin pieces would be cooked through before they had browned. The size is what buys enough seconds to get colour on the outside while the inside stays rare, and it is why the onion is still crisp at the end rather than collapsed.
- The wok technique here is borrowed, and the page can say from where. Pouring the soy and vinegar around the hot edge rather than into the middle is a Chinese move — the liquid hits hot metal and vaporises rather than dropping the pan's temperature — and it appears here for a documented reason: lomo saltado is chifa, the Peruvian-Cantonese cooking that came with Chinese immigration in the nineteenth century. Ceviche and tiradito record the other side of the same history. The same move turns up in chow mein, egg fried rice and pad see ew.
- The fries go in for seconds, and they are inside the dish rather than beside it. A fried potato crust is porous and the sauce is water, soy and vinegar, so contact time is the whole game — toss and serve. If that worries you, the variation that serves them alongside is the honest fix, not a compromise. Anticuchos is the other Peruvian plate here where the starch comes to the table beside the meat rather than under it.
The basics behind this dish
- Browning and the Maillard ReactionMeat fails to brown for one of three reasons: it is wet, the pan is cool, or you put too much in at once. Plus how the brown film stuck to the pan becomes your sauce.
- Cooking Meat: Temperature, Resting, and Cutting Against the GrainDoneness is a core temperature, not a number of minutes. What resting actually does, how to handle a thick cut, and why the direction you slice changes the texture.
- Knife Skills: Grip, Cuts, and Why Size MattersHow you hold the knife matters more than how fast you cut. The pinch grip, the claw hand, and why uniform size is a cooking decision rather than a cosmetic one.
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