Cook the chicken: Heat oil in a skillet over medium-high heat. Add chicken pieces and cook until golden brown and cooked through. Remove chicken from the pan and set aside.
Make the bourbon sauce: In the same skillet, combine bourbon, soy sauce, brown sugar, garlic, ginger, and apple cider vinegar. Bring to a simmer and cook until slightly thickened.
Coat the chicken: Return the cooked chicken to the skillet and toss to coat evenly with the sauce.
Serve: Plate the bourbon chicken over steamed rice and garnish with chopped green onions, if desired.
