In a small sauce pan heat oil over medium heat. When oil is hot sauté garlic until it is fragrant, about 3 minutes. Add the rest of the ingredients, except cornstarch & water, stir to combine & bring just to a boil. While the sauce is cooking, mix the cornstarch & water with a small whisk or fork. Make sure the cornstarch is dissolved completely and there are no lumps. When the sauce starts to boil, whisk in the cornstarch & water. Bring back to a slight boil, turn down heat to low and let cook for about 5 minutes more. Keep warm until wings are ready.