Peruvian beef stir-fry is fusion cooking at its best

Peru’s lomo saltado is fusion cooking at its easiest and most approachable, a quick stir-fry of soy-marinated beef, tomatoes and hot peppers that reflects the country’s cultural — and culinary —influences, from Incan farmers to Chinese immigrants.

Ancient settlers in the Andes Mountains cultivated peppers and potatoes. Spanish colonizers introduced beef and sheep. Centuries later, an influx of indentured Chinese workers came, bringing ingredients such as soy sauce and ginger, as well as stir-frying.

Chinese-Peruvian cuisine became known as chifa, and lomo saltado is standard on chifa menus (lomo refers to tenderloin, but various cuts of beef are used). Potato wedges usually are mixed in and french fries come on the side.

In the version from our book “Milk Street Tuesday Nights,” which limits recipes to 45 minutes or less, we focus on the meat. It is sliced into strips, marinated in soy sauce, then wok-fried over high heat. We develop flavor by mixing ground cumin into the soy sauce marinade. Tenderloin often is used here, but we prefer sirloin tips (also called flap meat) for their meatier flavor as well as lower price. And we sear the meat instead of stir-frying, which browns the meat more for fuller flavor.

Readily available jalapeño peppers make a good substitute for the traditional yellow aji peppers. Serve it with a scoop of rice to sop up the juices.

Peruvian Steak Stir-Fry with Onions and Tomatoes (Lomo Saltado)

Start to finish: 35 minutes

Servings: 4

1½ pounds sirloin tips, trimmed, cut into 3-inch pieces and sliced against the grain into ½-inch strips

1½ teaspoons ground cumin

Kosher salt and ground black pepper

5 tablespoons soy sauce, divided

3 tablespoons grapeseed or other neutral oil, divided

1 large red onion, halved and cut into ½-inch half rings

¼ cup red wine vinegar

2 medium garlic cloves, minced

1 jalapeño chili, stemmed and sliced into thin rounds

1½ cups grape tomatoes, halved

In a medium bowl, combine the steak, cumin, 1 teaspoon each salt and pepper, and 2 tablespoons of the soy sauce. Marinate at room temperature for 10 minutes. Pat the meat dry and transfer to a plate.

In a 12-inch skillet over high, heat 1 tablespoon of the oil until smoking. Add half of the meat in a single layer and cook, turning once, until well browned on both sides, 2 to 3 minutes total. Transfer to a plate. Repeat with 1 tablespoon of the remaining oil and the remaining meat.

In the same pan over medium-high, heat the remaining 1 tablespoon oil until shimmering. Add the onion and cook until just starting to soften, stirring, for 2 minutes. Stir in the vinegar and remaining soy sauce, scraping the bottom of the pan to remove any browned bits.

Cook for 1 minute until the sauce thickens slightly. Stir in the garlic and jalapeño and cook until the garlic is fragrant, about 30 seconds. Add the tomatoes, the meat and any accumulated juices to the pan. Cook until the meat is just warmed through, 30 seconds. Taste and season with salt and pepper.

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EDITOR’S NOTE: For more recipes, go to Christopher Kimball’s Milk Street at 177milkstreet.com/ap