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Stir-Fried Beef with Black Bean Sauce and Bell Peppers

Prep
15 min
Cook
8 min
Yield
4 servings
Level
medium
Cuisine
American
Stir-Fried Beef with Black Bean Sauce and Bell Peppers

A classic Chinese-American stir-fry featuring tender flank steak and crisp bell peppers coated in a savory black bean sauce. The fermented black beans provide deep umami flavor while garlic and oyster sauce add richness. Perfect for busy weeknight dinners when you want restaurant-quality results at home. The key is high heat and quick cooking to maintain the vegetables' crunch and the beef's tenderness.

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Method

10 steps
  1. 1

    Slice the flank steak thinly against the grain

  2. 2

    Combine minced black beans, garlic, soy sauce, oyster sauce, and sugar in a small bowl

  3. 3

    Heat vegetable oil in wok over high heat and stir-fry beef until no longer pink

  4. 4

    Remove beef and set aside

  5. 5

    Add more oil to wok and stir-fry bell peppers and onion until tender-crisp

  6. 6

    Return beef to wok with vegetables

  7. 7

    Pour black bean sauce mixture over beef and vegetables

  8. 8

    Stir cornstarch into beef broth and add to wok

  9. 9

    Cook until sauce thickens to desired consistency

  10. 10

    Garnish with chopped green onions and serve hot over steamed rice

Tips

Tip 1

Slice beef against the grain for maximum tenderness and easier chewing

Tip 2

Keep wok temperature high throughout cooking to achieve proper wok hei flavor

Tip 3

Have all ingredients prepped before starting as stir-frying moves quickly

Good to Know

Storage

Refrigerate leftovers for up to 3 days in airtight container

Make Ahead

Slice beef and vegetables up to 1 day ahead, store separately

Serve With

Serve immediately over steamed rice while hot for best texture

Common Mistakes

Watch

Use high heat to avoid steaming the vegetables and beef

Watch

Don't overcrowd the wok to maintain proper searing temperature

Substitutions

Gluten-Free Swaps

flank steak→
sirloin or strip steak1:1gluten-free

similar texture

Full guide →
black beans→
black bean paste1 tbsp paste for 2 tbsp beansgluten-free

more intense flavor

Full guide →

General Alternatives

beef broth→
chicken or vegetable broth1:1vegetarian if using vegetable

flavor variation

Full guide →
oyster sauce→
hoisin sauce1:1vegetarian

sweeter profile

Full guide →
Find more substitutions →

FAQ

Can I use frozen bell peppers instead of fresh?

Fresh peppers are preferred for better texture, but frozen can work if thawed and drained well first.

What if I can't find fermented black beans?

Substitute with black bean paste or sauce, using about half the amount as it's more concentrated.

How long will this keep in the refrigerator?

Store covered for up to 3 days, though the vegetables will soften slightly upon reheating.