PF Chang's Sesame Chicken Recipe

In a medium bowl, combine chicken breast, egg white, soy sauce, white pepper, and one tablespoon of water. Massage the meat with your hands and let it marinate for 15 minutes.
While the chicken is marinating, blanch the broccoli in a pot of boiling water for 45 seconds until just tender. Then dunk the broccoli in a bowl of cold water to prevent them from cooking further.
Combine cornstarch, flour, and baking powder in a shallow dish. Dust ½ a cup of the mixture onto a large baking sheet. Coat each piece of chicken in the flour mixture, then transfer to the prepared baking sheet.
Heat about 1 inch of oil in a deep pan to 350°F. Cook about 10-16 pieces of chicken until golden brown and crispy, about 5 minutes. Transfer to a paper towel-lined baking sheet to dry. Repeat the process with the remaining chicken.
Combine all the sesame sauce ingredients in a small bowl.
Heat oil in a large pan over medium heat. Add the garlic, ginger, and onions and cook for 1 minute. Add the bell pepper and blanched broccoli and cook for 2 minutes.
Add the sesame sauce mixture and bring to a simmer. Add the crispy chicken to the pan and toss to coat with the sauce. Sprinkle with sesame seeds, then serve.