Pulled Chicken Sandwiches with Slaw

Name: Pulled Chicken Sandwiches with Slaw
Ingredients: ⅓ cup apple cider vinegar; 3 tablespoons mayonnaise; 2 tablespoons chopped fresh cilantro; 1½ teaspoon honey; ½ teaspoon celery seed; ½ small head of cabbage, very thinly sliced; 2 tablespoons vegetable oil, divided; ½ small onion, finely chopped onion; 1 garlic clove, finely chopped; 1 canned chipotle chile in adobo; 1 bay leaf; ¾ cup barbecue sauce; ¼ cup apple cider vinegar; 1½ pound skinless, boneless chicken breasts; Kosher salt and freshly ground black pepper; 4 ciabatta or sandwich rolls, split, lightly toasted