First, you’re going to marinate chicken pieces in a mixture of cornstarch, baking soda (YES) and Chinese wine (or sherry or rice wine. You can also use vinegar!) Then you’re going to quickly fry them in hot oil before finishing them off in the stir-fry with other ingredients. The cornstarch/soy/wine marinade not only provides amazing flavour to the chicken, it acts like a protective coating which seals moisture inside the chicken, creating beautiful golden edges while preventing the chicken from overcooking.