In a large resealable plastic bag, combine the lemon juice, soy sauce, oil, garlic and ginger. Add chicken; seal bag and turn to coat. Refrigerate for 8 hours or overnight.
Remove chicken from marinade and place on a parchment paper lined and sprayed lightly with non stick sprayed baking sheet. Broil chicken 4 inches from the heat for 12-14 minutes or until juice runs clear, turning once. This is where the recipe and I differ (Your choice) I make up fresh marinade for this sauce and the recipe uses the original marinade. In a saucepan, combine cornstarch, water, broth and marinade, until smooth. Bring to a rolling boil; cook and stir for 2 minutes or until thickened. Serve chicken and sauce over rice. Sprinkle with toasted sesame seeds. Makes 6 serving.