2 teaspoons red wine vinegar
1 large garlic clove, minced
3/4 teaspoon ground cumin
3/4 teaspoon ground coriander
1/2 teaspoon cayenne pepper
1/4 teaspoon salt
1 1/3 to 1 1/2 pounds lamb shoulder arm (round-bone) chops, trimmed boned, cut into 1-inch pieces
4 bamboo skewers, soaked in water 10 minutes
Prepare barbecue (medium-high heat) or preheat broiler. Whisk first 7 ingredients in medium bowl to blend. Add lamb; toss to coat evenly. Let stand 5 minutes. Thread lamb on skewers, leaving 1/2-inch space between each piece.
Grill or broil lamb until crusty brown outside but still pink inside, turning occasionally, about 8 minutes. Arrange skewers on plates and serve.