Heat oil in a nonstick pan or pot over medium-high heat.
Add chicken and sprinkle salt and pepper.
Stir fry chicken until golden brown and cooked through.
Add garlic and stir fry for a few seconds until fragrant. Be careful not to burn it!
Add broth, bourbon, soy sauce, vinegar, ketchup, brown sugar, ginger powder, red chili flakes and mix until combined.
Add dissolved cornstarch, while gently mixing.
Bring to a boil and then lower the heat and simmer for a few minutes until sauce has thickened to your desired consistency.
Garnish with green onions. I also tossed some peanuts because I love that crunch but that's not necessary at all.
Serve immediately and enjoy!