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Oyster Sauce Beef Onion Stir-Fry

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A quick, flavorful stir-fry combining tender beef, onions, and a savory oyster sauce sauce, perfect for weeknight dinners.

Ingredients

450 g beef sirloin, thinly sliced

30 ml soy sauce

8 g cornstarch

30 ml vegetable oil

1 large onion, thinly sliced

3 cloves garlic, minced

1 tablespoon grated ginger

45 ml oyster sauce

15 ml soy sauce

12 g granulated sugar

60 ml beef broth

5 ml sesame oil

2 green onions, chopped (for garnish)

Cooked rice, for serving

Instructions

  1. In a medium bowl, combine the thinly sliced beef sirloin, soy sauce, and cornstarch. Toss to coat and let it marinate for about 10-15 minutes.
  2. In a small bowl, mix together the oyster sauce, soy sauce, granulated sugar, beef broth, and sesame oil. Set aside.
  3. Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the marinated beef in a single layer, cooking in batches if necessary to avoid overcrowding. Stir-fry for 2-3 minutes or until the beef is browned and cooked through. Remove the beef from the skillet and set it aside.
  4. In the same skillet, add the remaining vegetable oil. Add the thinly sliced onions and cook for 3-4 minutes, stirring occasionally, until the onions become tender and lightly caramelized. Add the minced garlic and grated ginger, cooking for another 1 minute until fragrant.
  5. Return the cooked beef to the skillet and pour in the prepared stir-fry sauce. Stir everything together, ensuring the beef and onions are coated with the sauce. Cook for another 2-3 minutes, allowing the sauce to thicken and the flavors to meld.
  6. Serve the stir-fry over a bed of steamed rice and garnish with chopped green onions. Enjoy!

Notes

If you prefer a spicy stir-fry, add sliced chili peppers or chili oil.

For a vegetarian version, replace beef with tofu or tempeh.

Feel free to add bell peppers, carrots, or snow peas for extra veggies.

Leftovers can be stored in the fridge for up to 2-3 days, but it’s best to reheat them in a skillet with a splash of water or broth.

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