Ingredients

3 red bell peppers

2 tablespoons whole cumin seeds

2 tablespoons whole coriander seeds

1/4 cup freshly ground dried ancho chiles

1/4 cup hot paprika

1 teaspoon cayenne pepper

2 teaspoons dried oregano, lightly toasted and crumbled

2 to 3 cloves garlic, finely chopped

1/2 cup olive oil

3 tablespoons red-wine vinegar

1 teaspoon salt, plus more for seasoning

16 (1-inch-thick) lamb shoulder chops

Preparation

Roast bell peppers on a grill or under broiler, turning, until skin is blackened. Place in a paper bag until cool enough to handle. Peel, seed, and puree in a food processor.

Toast cumin and coriander seeds over medium heat, shaking pan, until aromatic and just brown, 4 minutes. Grind finely in a spice grinder.

Combine ground chiles, paprika, cayenne, cumin, coriander, oregano, garlic, oil, vinegar, salt, and pureed peppers. Mix well.

Salt chops. Place in a nonreactive bowl. Add spice mixture; coat chops. Cover with plastic; refrigerate overnight or up to 3 days.

Preheat a grill or grill pan to medium hot. Grill chops, turning frequently, for 20 to 30 minutes, until chops are juicy but cooked through.