Chicken-and-fruit Casserole

• 15 green olives
• 6 peppercorns
• 3 garlic (cloves)
• 2 bay leaves
• 1 1/2 in of cinnamon
• 1 clove (whole)
• 1,100 gr chicken parts
• 60 ml vinegar
• 60 ml dry sherry
• 60 ml vegetable oil