1/8 cup vinegar (Guide notes: I find that a little low. It all depends on how sweet you want the sauce; for a sweeter sauce use less vinegar)
1/4 cup cornstarch
1 cup sugar
2 TB dark soy sauce
2 TB sesame oil
1 tsp chili paste, or more if desired
1 clove garlic (minced)
Cut the chicken into 1-inch cubes. Mix the marinade ingredients and marinate the chicken for 20 minutes.
To prepare the sauce: mix together all of the sauce ingredients. Pour them into a small pot and bring to a boil, stirring continuously. Turn the heat down to low and keep warm while you are deep-frying the chicken.
To deep-fry the chicken: add the marinated chicken pieces a few at a time, and deep-fry until golden brown. Drain on paper towels. Repeat with the remainder of the chicken.
Just before you are finished deep-frying, bring the sauce back up to a boil.
Place the chicken on a large platter and pour the sauce over. Sprinkle with sesame seeds. Serve the Sesame Chicken with rice.