medium heat. add pepper, onion and mushrooms and use a wooden spoon to keep them moving so they don't burn. as the veggies begin to soften, in about 3 minutes or so, add the bourbon and brown sugar, mixing them in so that the sugar is not lumpy.
add the chicken to the pan, reduce the heat to low, and cover the pan. cook the chicken for about 10 minutes, or until cooked through. it's ready to eat. 