Chicken and Broccoli Stir-Fry

Name: Chicken and Broccoli Stir-Fry
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Chinese
Ingredients: 1 lb boneless skinless chicken breasts, cut into bite-sized pieces; 1 lb broccoli florets; 2 tbsp vegetable oil, divided; 4 cloves garlic, minced; 1 tbsp ginger, minced; 1/2 cup low-sodium chicken broth; 1/4 cup oyster sauce; 2 tbsp low-sodium soy sauce; 1 tbsp rice wine vinegar; 1 tbsp brown sugar; 1 tbsp sesame oil; 1 tbsp cornstarch; Salt and pepper to taste; Sesame seeds and sliced green onions for garnish