1 c olive oil
1/4 c red wine vinegar
3 T cumin
1 1/2 T ground coriander
2 t cinnamon
2 t salt
2 t sugar
1/4 t cayenne pepper
4 chicken breasts
1/4 c fresh parsley

Whisk first 8 ingredients in bowl. Put in ziptop bag with chicken. Refrigerate for 4 - 6 hrs.

Grill and brush with remaining marinade while cooking. When done and plated, sprinkle with parsley.

Preparation time: 6 hours
Cooking time: 20 minutes

Source: Rob Rainford, but I don't have a link.