Beef and Broccoli Stir-Fry

Marinate the beef: Stir together the beef marinade ingredients (1 teaspoon soy sauce, 1 teaspoon Chinese rice wine, 1/2 teaspoon cornstarch, 1/8 teaspoon black pepper) in a medium bowl. Add the beef slices and stir until coated. Let stand for 10 minutes. Prepare the sauce: Stir together the sauce ingredients (2 tablespoons oyster sauce, 1 teaspoon Chinese rice wine, 1 teaspoon soy sauce, 1/4 cup chicken broth) in a small bowl. Set aside. Blanch or steam the broccoli: Bring a pot of water to a boil. Add the broccoli and cook until crisp-tender, about 2 minutes. Drain thoroughly.