- 8 (1/2-inch-thick) lamb loin chops (about 2 pounds, fatty tips trimmed)
- Kosher salt, to taste
- Black pepper, to taste
- 3 tablespoons neutral oil (such as grapeseed)
- 1 to 2 tablespoons finely chopped red Fresno chile or jalapeño chile (from 1 medium [3/4 oz.] chile, seeded if desired)
- 2 medium garlic cloves, finely chopped (about 2 teaspoons)
- 1 1/2 teaspoons ground cumin
- 1/3 cup bold red wine (such as Rioja or Bordeaux)
- 1 cup beef stock or lower-sodium beef broth
- 2 tablespoons cold unsalted butter
- 3 tablespoons chopped fresh cilantro
- 1/2 teaspoon grated lime zest plus 1 tablespoon fresh juice (from 1 lime)
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Season the lamb with salt and pepper. In a very large skillet, heat the oil until shimmering. Add the lamb chops and cook over moderately high heat until the chops are browned on the bottom, about 3 minutes. Turn the chops and cook until browned, about 2 minutes longer for medium meat. Transfer the chops to plates and tent to keep warm. Discard all but 1 tablespoon of drippings.
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Heat reserved drippings in a skillet over medium-high. Add chile and garlic; cook, stirring constantly, until softened, about 20 seconds. Add cumin; cook, stirring constantly, until fragrant, about 10 seconds. Add red wine (mixture will immediately come to a simmer). Simmer over medium-high, stirring occasionally to loosen browned bits on the bottom of the skillet, until the liquid has reduced by about half, 1 to 2 minutes. Add stock; cook, stirring occasionally, until mixture has reduced to about 3/4 cup and just barely coats the back of a spoon, 4 to 6 minutes. Reduce heat to low; add butter to mixture, stirring until just melted, about 30 seconds. Remove from heat. Stir in cilantro, lime zest, and lime juice. Season to taste with salt and black pepper. Serve the red wine pan sauce with the lamb chops.