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In a medium bowl, combine the sliced flank steak with 2 tablespoons soy sauce, 1 tablespoon cornstarch, 1 teaspoon sesame oil, and 1/4 teaspoon black pepper. Toss to coat the beef evenly. Cover and refrigerate for at least 30 minutes to marinate.

While the beef marinates, prepare the stir-fry sauce. In a small bowl, whisk together the beef broth, 1/4 cup soy sauce, oyster sauce, brown sugar, rice vinegar, 1 teaspoon cornstarch, garlic powder, and ginger powder until well combined and the cornstarch is dissolved.

Heat 1 tablespoon of vegetable oil in a large skillet or wok over high heat until shimmering. Add the marinated beef in a single layer (you may need to do this in batches to avoid overcrowding). Cook for 2-3 minutes per side until browned and cooked through. Remove the beef from the skillet and set aside.

Add the remaining 1 tablespoon of vegetable oil to the same skillet. Add the broccoli florets and stir-fry for 3-5 minutes until tender-crisp. If needed, add a splash of water (1-2 tablespoons) and cover for 1-2 minutes to steam the broccoli slightly.

Add the minced garlic and grated ginger to the skillet with the broccoli. Stir-fry for 30 seconds until fragrant.

Pour the prepared stir-fry sauce into the skillet. Bring to a simmer, stirring constantly, until the sauce thickens, about 1-2 minutes.

Return the cooked beef to the skillet with the sauce and broccoli. Toss everything together to coat the beef and broccoli evenly with the sauce. Cook for another 1-2 minutes to heat through.

Serve the beef and broccoli stir-fry immediately over steamed rice.


In a medium bowl, combine the sliced flank steak with 2 tablespoons soy sauce, 1 tablespoon cornstarch, 1 teaspoon sesame oil, and 1/4 teaspoon black pepper. Toss to coat the beef evenly. Cover and refrigerate for at least 30 minutes to marinate.

While the beef marinates, prepare the stir-fry sauce. In a small bowl, whisk together the beef broth, 1/4 cup soy sauce, oyster sauce, brown sugar, rice vinegar, 1 teaspoon cornstarch, garlic powder, and ginger powder until well combined and the cornstarch is dissolved.

Heat 1 tablespoon of vegetable oil in a large skillet or wok over high heat until shimmering. Add the marinated beef in a single layer (you may need to do this in batches to avoid overcrowding). Cook for 2-3 minutes per side until browned and cooked through. Remove the beef from the skillet and set aside.

Add the remaining 1 tablespoon of vegetable oil to the same skillet. Add the broccoli florets and stir-fry for 3-5 minutes until tender-crisp. If needed, add a splash of water (1-2 tablespoons) and cover for 1-2 minutes to steam the broccoli slightly.

Add the minced garlic and grated ginger to the skillet with the broccoli. Stir-fry for 30 seconds until fragrant.

Pour the prepared stir-fry sauce into the skillet. Bring to a simmer, stirring constantly, until the sauce thickens, about 1-2 minutes.

Return the cooked beef to the skillet with the sauce and broccoli. Toss everything together to coat the beef and broccoli evenly with the sauce. Cook for another 1-2 minutes to heat through.

Serve the beef and broccoli stir-fry immediately over steamed rice.
