Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2                    chicken breasts
   3      tablespoons   cornstarch
   1      tablespoon    msg -- optional
   1      tablespoon    oil
   3      centiliters   garlic -- minced
   5      tablespoons   soy sauce
   1 1/2  tablespoons   white wine vinegar
   1                    green onions -- in 1"pcs
     1/4  cup           water
   1      tablespoon    sugar
     1/8  tablespoon    cayenne -- or more

Preparation:

Skin and bone the chicken breasts, and cut into 1 1/2" cubes. Combine cornstarch and msg in a paper bag. Add the chicken and toss to coat. Heat oil in skillet or wok. Add the chicken and garlic. Stir fry until the chicken is lightly browned. Add soy sauce, vinegar, sugar and water. Cover and cook for three minutes. Add green onions and cayenne. Heat two minutes more. Serve with steamed rice.