In a small bowl, combine the warm chicken broth with the soy sauce, brown sugar, cornstarch, garlic and ginger.
1 cup chicken broth, ¼ cup soy sauce, 2 tablespoons brown sugar, 2 tablespoons Cornstarch, 2 garlic cloves, 1 tablespoon Fresh ginger
Pat dry the chicken with kitchen towels and season with salt and pepper.
2 chicken breasts, Salt and pepper
Heat a wok to medium-high and add the sesame oil. Cook the chicken until browned on all sides (work in batches so the wok doesn't get cold). Reserve the chicken.
2 tablespoons sesame oil
In the same wok, add a bit more oil and incorporate the green onions, broccoli and mushrooms - quickly sauté the vegetables just until tender.
2 green onion, 2 cups broccoli, 2 cups mushroom
Bring back the chicken to the wok, quickly combine and add the sauce - stirring frequently just until it starts to thicken.
Turn off the heat and serve over warm rice with sesame seeds and green onions.
Sesame seeds and green onion