General Tso's Chicken

Ingredients

• rice, to taste
• scallion greens, to taste
• 1/2 tablespoon soy sauce
• 1/2 tablespoon cooking sherry
• 1 egg white
• 8 ounces skinless, boneless chicken breast
• 3 tablespoons chicken stock
• 1 tablespoon tomato paste
• 3/4 tablespoon soy sauce
• 3/4 tablespoon rice vinegar
• 1 teaspoon hoisin sauce
• 1/2 teaspoon chili paste
• 1 teaspoon vegetable oil
• 3/4 tablespoon sugar
• 1 teaspoon cornstarch
• 3/4 cup cornstarch
• 1/4 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 4 tablespoons vegetable oil
• 1/4 teaspoon chili flakes
• 2 garlic cloves
• sesame seeds, to taste