Broccoli Beef

What you need:

2 lbs. sirloin steak thinly sliced across the grain (I have my butcher cut it for steak "sandwiches" and it's perfect for this recipe.)
1 bag frozen broccoli florets
2 T olive oil
2 cloves garlic, minced
1 t cornstarch dissolved in 1 T water

For the beef marinade:
  4 t soy sauce
  4 t rice vinegar
  1 t sesame oil
  2 t cornstarch
  1/2 t ground black pepper

For the sauce:
  4 T oyster sauce
  2 t rice vinegar
  2 T soy sauce
  1/4 C chicken broth

How to make it:

Marinate the beef: Mix the marinade ingredients in a gallon ziplock bag, add the beef and marinate 30 minutes.
Prepare the sauce: Stir together the the sauce ingredients ina small bowl.
Cook the broccoli in the microwave for 5 minutes on high heat, set aside.
Heat a large frying pan or wok over high heat, add the oil and swirl to coat. Add the beef and immediately spread it out over the surface of the pan. Let the beef fry, stirring occasionally until no longer pink. Pour in the sauce, add the broccoli, and bring to a boil. Pour in the dissolved cornstarch and cook, stirring, until the sauce boils and thickens, about 30 seconds.