Crispy Grilled Chicken With Blueberry Barbecue Sauce

• For the blueberry BBQ sauce
• 3 garlic cloves, minced
• 1/4 cup finely diced vidalia onion
• 2 tablespoons olive oil
• 2 cups ketchup
• 1/4 cup water
• 3 tablespoons apple cider vinegar
• 2 tablespoons tomato paste
• 1 tablespoon Worcestershire sauce
• 1 tablespoon soy sauce (gluten-free if necessary)
• 1/3 cup light brown sugar
• 2 tablespoons chili powder
• 1 tablespoon ground cumin
• 1 tablespoon coarsely ground black pepper
• 1 teaspoon dry mustard
• 1/2 teaspoon cayenne pepper
• 3 cups fresh blueberries
• For the chicken
• 2 2 1/2-pound fryer chickens, cut into pieces
• 2 teaspoons kosher salt
• 2 teaspoons ground black pepper
• 2 tablespoons butter, melted
• 1 1/2 cups blueberry barbecue sauce, above

1. In a heavy bottomed saucepan over medium heat, sweat the garlic and onion in the olive oil until soft, about 5 minutes.
2. Add the ketchup, water, vinegar, tomato paste, Worcestershire sauce, and soy sauce. Stir until combined.
3. Add the brown sugar, chili powder, cumin, pepper, mustard and cayenne and stir until combined.
4. Let simmer on low heat, stirring frequently for 30 minutes.
5. Fold in the blueberries, and continue cooking over low heat for an additional 30 minutes
6. Serve warm, or cool. Refrigerate in an airtight container for up to one week.
7. Preheat a gas grill to medium, set up for indirect cooking. Or light a charcoal grill set up for indirect cooking.
8. Season the chicken with salt and pepper. Place the chicken pieces, skin side up on the grill.
9. Cook the chicken with the grill cover on. Rotate the chicken every ten minutes for even cooking. Baste with the butter. Do not flip the chicken, or the skin will stick to the grill. Cook to 160u0b0 F, checking the temperature with an instant-read thermometer. The chicken pieces will not all cook to the same temperature at the same time. As the pieces are complete, move to a platter.
10. When all the chicken is cooked, return to the grill, again, keeping the chicken skin side up. Coat with barbecue sauce. Close the grill and cook 2 minutes. Arrange chicken on platter and serve with additional sauce for dipping.

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Taken from food52.com/recipes/77085-crispy-grilled-chicken-with-blueberry-barbecue-sauce (may not work)