Ingredients:
- 300 grams beef sirloin (sliced thinly against the grain for tenderness)
- 1/2 red bell pepper (diced)
- 1/2 green bell pepper (diced)
- 1 onion (sliced thinly)
- 5 cloves garlic (finely chopped)
- Black pepper (to taste)
- Salt (to taste)
- Sugar (to taste)
- Sweet soy sauce (to taste)
- 1 teaspoon oyster sauce
- 1 teaspoon sesame oil (optional)
- Water (as needed)
- Cornstarch (to thicken the sauce)
Instructions:
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Prepare the Beef: Begin by slicing the beef sirloin thinly against the grain to ensure tenderness. Place the slices in a bowl and season with sweet soy sauce, salt, and black pepper. Allow the beef to marinate in the refrigerator for at least 30 minutes to absorb the flavors.
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Prepare the Vegetables: While the beef is marinating, finely chop the garlic, dice the red and green bell peppers, and slice the onion thinly.
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Cook the Garlic: Heat a small amount of oil in a large skillet or wok over medium heat. Add the chopped garlic and sauté until fragrant, but not browned.
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Cook the Beef: Add the marinated beef to the skillet with the garlic. Stir-fry until the beef changes color and is nearly cooked through.
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Add the Onion: Incorporate the sliced onion into the skillet and continue to stir-fry until the onion becomes tender and translucent.
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Add Seasonings: Pour a small amount of water into the skillet to create a bit of sauce. Add the sweet soy sauce, oyster sauce, and black pepper. If using, drizzle in the sesame oil for additional flavor.
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Add the Peppers: Once the beef is cooked through, add the diced red and green bell peppers. Stir well to combine.
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Thicken the Sauce: Mix a small amount of cornstarch with water to create a slurry. Stir this into the skillet to thicken the sauce to your desired consistency.
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Adjust the Seasoning: Taste and adjust the seasoning with additional salt, pepper, or sweet soy sauce if needed.
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Serve: Once everything is well combined and the sauce has thickened, your Sapi Lada Hitam is ready to serve. Enjoy this flavorful black pepper beef stir-fry with steamed rice or your favorite side dishes.