Mandarin Chicken

Name: Mandarin Chicken
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Asian, Chinese
Ingredients: 1½ pounds boneless, skinless chicken breasts (cut into 2-inch cubes); ¾ cup cornstarch; 2 teaspoons finely chopped fresh ginger (or ½ teaspoon ground ginger); 1 tablespoon minced garlic; 3 to 4 tablespoons dark brown sugar; 5 ½ tablespoons soy sauce; ½ tablespoon oyster sauce; ½ cup fresh orange juice; 3 to 4 tablespoons vegetable oil (for frying); 2 dried red chilis (optional); sliced green onions (for garnish); sesame seeds (for garnish)