Cut Chicken *(These Are 1/2 Breasts, As You Buy Them In The Market) Into 1 1/2 Inch Cubes. Lightly Toss With Cornstarch In Bag To Coat. Heat Oil In Skillet Or Wok; Stir-Fry Chicken And Garlic Until Lightly Browned. Add Soy Sauce, Vinegar, Sugar And Water. Cover And Cook 3 Minutes Or Until Chicken Is Cooked Through. Add Green Onions And Cayenne; Cook Uncovered About 2 Minutes Longer. 221 Calories Per Serving.