Ingredients

• 1/4 cup olive oil
• 2 tablespoons finely chopped oregano
• 2 garlic cloves, minced
• 2 teaspoons ground cumin
• 1 teaspoon ground coriander
• 1/4 teaspoon cayenne
• 2 pounds sirloin flap steak or flatiron steak, cut into 1 1/2-inch pieces
• Equipment: 12 (12-inch) skewers, soaked in water 30 minutes if wooden
• Accompaniment: roasted red pepper and walnut spread

Instructions

1. Stir together oil, oregano, garlic, spices, and 1 teaspoon salt in a bowl, then toss with beef. Marinate, chilled, at least 2 hours.
2. Prepare grill for direct-heat cooking over medium-hot charcoal (high heat for gas); see Grilling Procedure . Thread about 4 pieces of beef onto each skewer, leaving small spaces between pieces, then transfer to a tray.
3. Oil grill rack, then grill beef, covered only if using a gas grill, turning, until browned but still pink inside, 4 to 5 minutes.