Cut chicken thighs into bite-sized pieces.
Toss chicken with cornstarch, salt, and black pepper until evenly coated.
Whisk together soy sauce, cornstarch, chicken stock, whiskey, and brown sugar. Set aside.
Heat oil in a large skillet over medium-high heat. Add chicken and cook until browned and cooked through.
Add garlic and ginger. Cook for about 30 seconds, stirring frequently.
Stir the sauce again and pour it into the skillet with the chicken.
Reduce heat slightly and simmer until the sauce thickens and becomes glossy and sticky, stirring occasionally.
Drizzle with honey, if desired.
Serve over cooked white rice and garnish with sliced green onions.