Pre-heat the oven to 375°F.
In a medium size saucepan, heat 1 tablespoon EVOO, one turn of the pan, over medium-high heat. Add the garlic and red onion and cook until tender, 4-5 minutes; season with salt and pepper. Stir in the tomato paste and smoked paprika and cook until fragrant, 1-2 minutes. Stir in the chicken stock, brown sugar, hot sauce, Worcestershire sauce, orange peel and orange juice and bring to a boil. Lower the heat and simmer the barbecue sauce until slightly thickened, about 5 minutes.
Meanwhile, in a large cast iron skillet, heat the remaining 2 tablespoons EVOO, two turns of the pan, over medium-high heat until shimmering. Add the chicken, season with salt and pepper and cook until golden brown on all sides, 6-8 minutes. Pour the barbecue sauce into the skillet and drizzle the bourbon on top. Remove the pan from the heat and light the alcohol with a match. Return the pan to the heat and cook until the flames subside.
Fold the scallions, add 1/2 cup cheese into the mixed cornbread batter. Spoon the mixture evenly over the barbecue chicken in the skillet. Sprinkle the remaining 1/2 cup cheese on top. Bake until the cornbread is golden-brown, about 30 minutes.