Preheat oven to 375 and spray a 9x13 inch baking dish with cooking spray.
In a bowl, whisk together all sauce ingredients, set aside.
Add chicken and 1 cup corn starch to a large ziplock bag. Seal and shake to coat chicken. Transfer chicken to a large pan or skillet drizzled with oil. Saute chicken over medium high heat until browned (2-4 minutes).
Toss chicken in the prepared sauce. Transfer to baking dish. Bake for 20-25 minutes until chicken is cooked through. Serve with sesame seeds and green onions for garnish if desired. Enjoy!
Sauce can be made ahead of time and kept in the fridge until ready to use.