Blackberry Barbecue Sauce with Grilled Chicken

Ingredients

• 1 whole chicken, quartered (about 4 lbs)
• Extra virgin olive oil, to coat (roughly ¼ cup)
• ¼ cup chicken seasoning
• 1 cup apple cider vinegar
• 1 cup ketchup
• ¼ cup hot sauce , (we love Valentina hot sauce)
• ¼ cup cane sugar
• ¼ cup agave nectar , (honey works too)
• 1 tablespoon black peppercorns
• 6 ounces blackberries , (or other favorite berry, about 1 ½ cups)