Chinese Takeout Orange Chicken

Ingredients

• 1 orange
• 4 boneless skinless chicken breasts
• 2 tablespoons cornstarch
• 1/2 teaspoon white pepper
• 1 cup orange juice
• Vegetable oil
• 1 tablespoon cornstarch
• 1/4 cup sliced green onions
• 1/4 cup water
• 2 tablespoons soy sauce
• ½ teaspoon red pepper flakes
• 1 teaspoon ground ginger
• ⅓ cup brown sugar
• 4 egg whites
• 1 teaspoon salt
• ¼ cup rice vinegar