Trim the Chicken into bite sized chunks. Throw the chicken bites into a couple ziplock bags and add the egg, salt, pepper, flour, corn starch, and soy sauce. Slowly add water to make this an even coated batter. Let this sit in the fridge for 1 hour.
Heat up some oil for frying (enough to cover the chicken). Fry the chicken until golden brown. Drain the chicken and wait 3 minutes before adding them into the sauce.
Add all sauce ingredients into a pot and heat until a slow simmer, constantly stirring. Cook until a dark golden brown.