• Prep Time: 20 minutes
• Marinating Time: 25 minutes
• Cook Time: 15 minutes
• Total Time: 1 hour
• Servings: 4 servings
• Difficulty Level: Easy to Moderate
• Cooking Intensity: Medium-High Heat

Ingredients

For the Beef Marinade

• 1 pound flank steak or sirloin steak, thinly sliced against the grain
• 1 tablespoon soy sauce
• 1 tablespoon oyster sauce
• 1 teaspoon sesame oil
• 1 tablespoon cornstarch
• 1 teaspoon rice vinegar
• 1/2 teaspoon black pepper

For the Stir-Fry

• 2 tablespoons vegetable oil
• 1 large green bell pepper, sliced
• 1 large red bell pepper, sliced
• 1 large onion, sliced into wedges
• 3 cloves garlic, minced
• 1 teaspoon fresh ginger, grated

For the Sauce

• 1/3 cup low-sodium soy sauce
• 2 tablespoons oyster sauce
• 1 tablespoon hoisin sauce
• 1 tablespoon brown sugar
• 1 tablespoon cornstarch
• 1/2 cup beef broth or water
• 1 teaspoon sesame oil
• 1/2 teaspoon crushed red pepper flakes (optional)

For Serving

• Steamed jasmine rice
• Sesame seeds
• Chopped green onions

Why You’ll Love This Recipe

This pepper steak recipe combines everything people love about Chinese stir-fry dishes: tender meat, crisp vegetables, and a flavorful sauce with the perfect balance of savory, sweet, and slightly smoky flavors. Unlike many takeout versions that can become greasy, this homemade recipe stays fresh and vibrant while still delivering that sizzling restaurant taste.

The secret lies in the marinade and high-heat cooking. Marinating the steak with soy sauce and cornstarch creates a velvety texture that keeps the beef juicy and tender during stir-frying. The onions soften slightly while the peppers maintain their crunch, creating a delicious contrast in texture.

How to Prepare the Beef

Thin slices of beef are essential for this recipe. Place the steak in the freezer for about 15 minutes before slicing to make cutting easier. Always slice against the grain to ensure tender bites.

In a mixing bowl, combine the sliced steak with soy sauce, oyster sauce, sesame oil, cornstarch, rice vinegar, and black pepper. Mix well until every piece is coated evenly. Let the beef marinate for at least 25 minutes.

This step is important because the marinade not only flavors the meat but also helps create the silky texture commonly found in Chinese restaurant stir-fries.

Preparing the Sauce

In a separate bowl, whisk together soy sauce, oyster sauce, hoisin sauce, brown sugar, cornstarch, beef broth, sesame oil, and red pepper flakes if using.

The sauce should be smooth without any lumps. Set it aside near your cooking area because stir-frying moves quickly once the heat is on.

The combination of soy sauce and oyster sauce creates a rich umami flavor, while brown sugar balances the saltiness perfectly.

Cooking Instructions

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