Zesty Ginger Beer BBQ Pulled Chicken Sandwich

From Food Network Challenge

2 cups ginger beer
2 tablespoons Worcestershire sauce
1 cup ketchup
2 tablespoons apple cider vinegar
1/2 cup hoisin sauce
1/2 teaspoon five-spice powder
1/4 cup fresh orange juice
1 clove garlic, minced
2 tablespoons fresh lime juice
1/2 teaspoon onion powder
2 tablespoons dark brown sugar
1/2 teaspoon salt
2 tablespoons honey
1/2 teaspoon black pepper
1 rotisserie chicken, skin removed, meat shredded

Sweet potato bacon biscuits:
1/4 cup yellow onion, chopped
1 tablespoon olive oil
1/4 teaspoon sugar
2 cups all-purpose flour
2 tablespoons brown sugar
2 1/2 teaspoons baking powder
1/2 teaspoon baking soda
3/4 teaspoon salt
About 4 tablespoons butter
1/2 cup cooked bacon, chopped
3/4 cup cold sweet potato puree
1/3 buttermilk

For the chicken: In a medium saucepan place the ginger beer, Worcestershire sauce, ketchup, apple cider vinegar, hoisin sauce, spice powder, orange juice, garlic, lime juice, onion powder, brown sugar, salt, honey, and pepper. Bring to a simmer on low heat for 15 minutes or until thickened. Add chicken and keep warm.
For sweet potato bacon biscuits: Preheat oven to 425 degrees F.
In a small skillet, caramelize onion with olive oil and sugar. In the bowl of a food processor combine flour, brown sugar, baking powder, baking soda and salt and pulse to combine. Add butter and pulse until it resembles coarse crumbs. Remove contents of food processor to a medium bowl. Fold in bacon and onion. Combine sweet potato puree and buttermilk. Pour into dry ingredients to form a soft dough. Place dough on a floured surface and pat into 1-inch thickness. Cut out biscuits with a 2-inch cutter and arrange in a buttered skillet and place into the preheated oven for 25 minutes or until golden brown. Allow biscuits to cool slightly before making sandwich.
To assemble: Split biscuit in half. Place a generous 1/2 cup of barbeque chicken on the bottom half of the biscuit and top with other biscuit half.