In a medium bowl, combine the chicken, garlic, ginger, soy sauce, rice vinegar, sesame oil, and red pepper flakes. Mix until the chicken is well coated and set aside.
Heat the vegetable oil in a large skillet over medium-high heat. Add the chicken and cook, stirring occasionally, until the chicken is cooked through, about 5 minutes.
Add the broccoli to the skillet and stir to combine. Cook for 2 minutes.
Add the chicken broth and stir to combine. Cook until the broccoli is tender and the sauce has thickened, about 3 minutes.
Season with salt and pepper to taste.
Serve hot.
Interesting Facts
Stir-fries are a great way to use up leftover vegetables.
You can substitute any vegetables you like in this dish.
This dish is vegan-friendly if you use vegetable broth instead of chicken broth.