Moroccan Spiced Grilled Chicken Kebabs

Recipe by David Lebovitz

http://www.davidlebovitz.com/moroccan-spiced-grilled-chicken-skewers-kebabs/

Ingredients

6 cloves garlic, peeled
1 small onion, peeled
3/4 cup (180g) whole milk plain yogurt, preferably Greek-style
3 tablespoons fresh lemon juice
5 teaspoons ras el hanout
2 teaspoons freshly ground black pepper
1 teaspoon salt
1 teaspoon paprika, sweet or smoked
1 teaspoon crushed red pepper flakes
2- pounds (900g) boneless, skinless chicken thighs, trimmed of fat, cut into 1 1/4-inch (4cm) pieces