Using a small bowl, mix the cornstarch to a smooth paste with the soy sauce and set aside.
Cut up the chicken into small bite-size pieces. Over medium high heat add oil and fry the chicken and minced fresh ginger for 1 minute.
Add in the mixed cornstarch and soy sauce and cook for another minute, stiring often.
Add the sugar and sherry and cook for another minute.
Test the chicken for doneness and then serve.
Get creative: based on the statistics of over 100,000 recipes, here are some other ingredients that are commonly used with the ingredients in this recipe that you might want to experiment by adding one or two of the following (amounts adjusted assuming you making 4 servings):
brown sugar: 2%
soy sauce: 3%
soy sauce: 11%
brown sugar: 11%
vegetable oil: 9%