– ¼ cup chopped cilantro, or parsley if you prefer – 1 head of minced garlic – 1 ½ tablespoons salt – 1 tablespoon ground black pepper – 3 tablespoons sour orange juice, or ¼ cup lime juice – ¼ cup olive oil – 1 tablespoon ground annatto – 4 boneless, whole, skinless chicken breasts