Divide chicken into 8 parts, wash and pat dry. Heat the oil in a casserole. Brown the chicken parts on all sides for about 15 minutes and season with salt and pepper. Add orange juice, Campari and 1/4 l broth.
Add the rosemary branch, bay leaf, orange peel and tomatoes and braise in a closed pot for about 30 minutes. Little by little pour on the remaining chicken soup. Add the olives about 5 minutes before the end of the cooking time.
Sprinkle in sauce thickener and bring to the boil again. Season orange chicken with salt and pepper.