Grilled Chicken Thighs with Blackberry BBQ Sauce

Name: Grilled Chicken Thighs with Blackberry BBQ Sauce
Ingredients: 1 tablespoon ground coriander; 1 tablespoon smoked paprika; 1 tablespoon kosher salt; 8 skin-on, bone-in chicken thighs; Olive oil; 1/2 recipe Blackberry BBQ Sauce; 3 pints fresh blackberries; 12 ounces dark beer; 1 cup balsamic vinegar; 1 cup red wine vinegar; 1/2 cup packed light brown sugar; 1 onion, sliced; 1 clove garlic, minced; 1 habanero pepper, slit; 1 tablespoon ground chipotle chile powder; 1 tablespoon finely ground coffee; 1 tablespoon ground cumin