Combine sugar, soy sauce, lemon juice, oil, garlic and ginger in a small
saucepan.
Combine water with cornstarch in a small bowl and stir until cornstarch
is dissolved. Add to saucepan and turn heat to high. Stir often while bringing
mixture to a boil, then reduce heat and simmer for 4 to 6 minutes or until
sauce is thick.
Preheat your grill on high for the chicken.
When the grill is hot, rub each chicken piece with oil and cook the chicken
for 4 to 6 minutes per side or until done. Chicken should have browned in
spots. When chicken is done, chop it into bite-size pieces.
Pour the chicken pieces into a large frying pan over medium heat. Heat until
chicken sizzles then reduce heat and cover chicken until ready to serve.
Spoon chicken into a medium bowl, then pour all the sauce over the chicken
and stir until well-coated. Serve with steamed white rice.