Geoffrey Zakarian Recipes | BBQ Chicken Sandwich

Ingredients

• 1 tablespoon canola oil
• 3 medium white onions, finely chopped (about 5 cups)
• 3 garlic cloves garlic, finely chopped
• 1 teaspoon ground cumin
• ½ teaspoon smoked paprika
• 1 cup tomato paste
• 4 canned chipotle peppers plus their sauce
• 1 tablespoon anchovy paste
• 1 quart unseasoned chicken stock
• 1 cup cider vinegar
• 1 cup maple syrup
• ½ cup orange juice concentrate
• ½ cup dijon mustard
• ½ cup molasses
• 1 tablespoon fish sauce
• ¼ cup Worcestershire sauce, plus 2 tablespoons to finish
• Kosher salt and freshly ground black pepper, to taste
• 8 boneless, skinless chicken thighs
• Sesame seed rolls