To make the chicken extremely tender like Chinese restaurants, you may use 1 tablespoon of baking soda to tenderize the chicken. In a bowl, add the baking soda to the chicken. Use a spoon to mix well so the baking soda coats the chicken evenly. Leave on for 5 minutes before rinsing the chicken off with cold water. Make sure you rinse the chicken well so there is no residue on the chicken. Pat dry with paper towels before marinating with corn starch and rice wine.