Chicken and Broccoli Chinese Takeout

Ingredients

• 1 pound boneless, skinless chicken breast, sliced into thin strips
• 1 tablespoon soy sauce
• 1 tablespoon cornstarch
• 3 tablespoons vegetable oil, divided
• 2 cups broccoli florets
• 1 red bell pepper, sliced
• 1/2 onion, sliced
• 2 cloves garlic, minced
• 1 teaspoon ginger, minced
• 1/4 cup chicken broth
• 2 tablespoons oyster sauce
• 2 tablespoons soy sauce
• 1 tablespoon sesame oil
• 1 teaspoon sugar
• Cooked white rice, for serving