Author Notes: 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. It’s part of the chifa cuisine—Asian-influenced dishes brought to the South American country by indentured Chinese workers in the late 19th century. For our take, we developed flavor by mixing ground cumin into the soy sauce marinade. 

Milk Street's Lomo Saltado

Serves: 4 
Prep time: 15 min 
Cook time: 15 min

Ingredients

• 1 1/2pounds sirloin tips, trimmed, cut into 3-inch pieces and sliced against the grain into ½-inch strips
• 1/2teaspoon ground cumin
• 1pinch kosher salt, plus more to taste
• 1pinch ground black pepper, plus more to taste
• 5tablespoons soy sauce, divided
• 3tablespoons grapeseed or other neutral oil, divided
• 1large red onion, halved and cut into ½-inch half rings
• 1/4cup red wine vinegar
• 2medium garlic cloves, minced
• 1jalapeño chili, stemmed and sliced into thin rounds
• 1 1/2cups cups grape tomatoes, halved
  

Directions

1. 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. Drain, pat the meat dry and transfer to a plate.
2. In a 12-inch skillet over high, heat 1 tablespoon of the oil until barely 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.
3. 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 3 tablespoons soy sauce, scraping the bottom of the pan.
4. Cook for 1 minute, or 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. Cook until the meat is just warmed through, 30 seconds. Taste and season with salt and pepper.

https://food52.com/recipes/80684-milk-street-s-lomo-saltado