Heat the oil in a large pan over medium high heat. Season the chicken with salt and pepper to taste.
Place the chicken in the pan and cook for 4-5 minutes on each side or until golden brown and cooked through. Add the garlic to the pan and cook for 30 seconds.
While the chicken is cooking. In a medium bowl whisk together the bourbon, brown sugar, ketchup, apple cider vinegar, water, soy sauce and cornstarch.
Pour the sauce mixture over the chicken and bring to a boil. Turn the heat down to low and simmer for 3-5 minutes or until sauce has thickened.
Sprinkle with green onions and serve immediately, over rice if desired.