Preheat oven to 350 degrees.
Marinate chicken in spices for at least 1 hour.
Melt butter in skillet on medium heat, then add olive oil.
Saute garlic and onions until translucent and fragrant. Set aside.
Turn heat to medium-high and sear chicken, about 7-10 minutes on each side.
Reduce heat and add chicken broth, olives, lemons and raisins.
Bring to a boil.
Transfer to oven and bake, covered, for 25-30 minutes until chicken is fully cooked and tender.