Experience the vibrant flavors of Thailand with this Thai pepper steak recipe. This dish combines tender slices of beef sirloin with colorful bell peppers and onions, all brought together with a savory blend of soy sauce, oyster sauce, and black pepper. Perfect for a quick weeknight dinner, this recipe will transport your taste buds to the bustling streets of Bangkok.
While most of the ingredients in this recipe are commonly found in your pantry, you might need to pick up oyster sauce if you don't already have it. This thick, flavorful sauce is essential for adding depth and umami to the dish. You can find it in the Asian foods section of most supermarkets.

Ingredients For Thai Pepper Steak Recipe
Beef sirloin: Thinly sliced for quick cooking and tenderness.
Red bell pepper: Adds a sweet and slightly fruity flavor.
Green bell pepper: Provides a mild, slightly bitter taste.
Onion: Adds a sweet and savory depth to the dish.
Soy sauce: Brings a salty and umami flavor.
Oyster sauce: Adds a rich, savory taste with a hint of sweetness.
Black pepper: Provides a mild heat and aromatic flavor.
Sugar: Balances the savory and salty elements with a touch of sweetness.
Vegetable oil: Used for stir-frying the ingredients.
Garlic: Adds a pungent and aromatic flavor.
Technique Tip for This Recipe
To achieve the best flavor and texture for this dish, make sure to slice the beef sirloin against the grain. This will help the meat stay tender and absorb the sauces more effectively. Additionally, when stir-frying the vegetables, keep them moving constantly in the skillet to ensure even cooking and to maintain their crispness.
Suggested Side Dishes
Alternative Ingredients
beef sirloin - Substitute with chicken breast: Chicken breast is a lean protein that can absorb flavors well, making it a good alternative to beef sirloin.
red bell pepper - Substitute with yellow bell pepper: Yellow bell peppers have a similar sweetness and crunch, providing a similar texture and flavor profile.
green bell pepper - Substitute with poblano pepper: Poblano peppers offer a mild heat and a slightly smoky flavor, adding a different but complementary taste.
onion - Substitute with shallots: Shallots have a milder and sweeter flavor, which can add a subtle complexity to the dish.
soy sauce - Substitute with tamari: Tamari is a gluten-free alternative to soy sauce with a similar umami flavor.
oyster sauce - Substitute with hoisin sauce: Hoisin sauce is sweeter and less salty but can provide a similar depth of flavor.
black pepper - Substitute with white pepper: White pepper has a slightly different heat profile and can add a more subtle spiciness.
sugar - Substitute with honey: Honey adds sweetness with a hint of floral notes, enhancing the overall flavor.
vegetable oil - Substitute with canola oil: Canola oil has a neutral flavor and a high smoke point, making it a suitable alternative for cooking.
garlic - Substitute with shallots: Shallots can provide a milder, sweeter flavor that complements the dish well.
Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
Allow the beef sirloin and vegetables to cool completely before storing. This prevents condensation, which can lead to sogginess and spoilage.
Transfer the cooled Thai pepper steak into an airtight container. For best results, use a container that fits the amount of food snugly to minimize air exposure.
Label the container with the date of preparation. This helps you keep track of how long the dish has been stored.
Store the container in the refrigerator if you plan to consume the dish within 3-4 days. The flavors will meld together beautifully, making it even more delicious.
For longer storage, place the airtight container in the freezer. The Thai pepper steak can be frozen for up to 2-3 months without significant loss of flavor or texture.
When ready to reheat, thaw the frozen Thai pepper steak in the refrigerator overnight. This gradual thawing helps maintain the integrity of the beef and vegetables.
Reheat the dish in a skillet over medium heat, stirring occasionally to ensure even heating. You can also use a microwave, but be sure to cover the dish to retain moisture.
If the dish appears dry during reheating, add a splash of soy sauce or a bit of vegetable oil to revive its saucy goodness.
Serve the reheated Thai pepper steak with freshly steamed rice to enjoy a meal that tastes just as good as the day it was made.
How to Reheat Leftovers
Stovetop Method:
- Heat a non-stick skillet over medium heat.
- Add a splash of vegetable oil or a bit of beef broth to prevent sticking.
- Add the leftover Thai pepper steak and stir occasionally until heated through, about 5-7 minutes.
Microwave Method:
- Place the Thai pepper steak in a microwave-safe dish.
- Cover with a microwave-safe lid or plastic wrap with a small vent.
- Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the Thai pepper steak in an oven-safe dish and cover with aluminum foil.
- Bake for about 15-20 minutes, or until heated through.
Steaming Method:
- Set up a steamer basket over boiling water.
- Place the Thai pepper steak in the basket and cover.
- Steam for about 5-7 minutes, or until thoroughly heated.
Air Fryer Method:
- Preheat the air fryer to 350°F (175°C).
- Place the Thai pepper steak in the air fryer basket.
- Heat for 3-5 minutes, shaking the basket halfway through to ensure even heating.
Best Tools for This Recipe
Skillet: A large, flat-bottomed pan used for stir-frying the ingredients.
Spatula: A tool used to stir and flip the ingredients in the skillet.
Knife: Essential for slicing the beef, bell peppers, and onion.
Cutting board: A surface to safely chop and slice the ingredients.
Measuring spoons: Used to measure out the soy sauce, oyster sauce, black pepper, and sugar.
Garlic press: Handy for mincing the garlic cloves quickly.
Mixing bowl: Useful for holding the sliced beef before cooking.
Serving dish: A plate or bowl to serve the finished dish.
Rice cooker: Convenient for preparing the steamed rice to accompany the dish.
How to Save Time on Making This Dish
Prep ingredients in advance: Slice the beef sirloin, bell peppers, and onion ahead of time and store them in separate containers.
Use a garlic press: Mince the garlic quickly with a garlic press instead of chopping by hand.
Pre-mix sauces: Combine soy sauce, oyster sauce, black pepper, and sugar in a small bowl before cooking.
High heat cooking: Use high heat to stir-fry the beef and vegetables quickly, reducing overall cooking time.
Batch cooking: Double the recipe and cook in batches to save time on future meals.

Thai Pepper Steak Recipe
Ingredients
Main Ingredients
- 1 lb Beef sirloin, thinly sliced
- 1 Red bell pepper, sliced
- 1 Green bell pepper, sliced
- 1 Onion, sliced
- 2 tablespoon Soy sauce
- 1 tablespoon Oyster sauce
- 1 teaspoon Black pepper
- 1 teaspoon Sugar
- 2 tablespoon Vegetable oil
- 2 cloves Garlic, minced
Instructions
- 1. Heat the vegetable oil in a skillet over medium-high heat.
- 2. Add the garlic and stir-fry until fragrant.
- 3. Add the beef slices and cook until browned.
- 4. Add the bell peppers and onion, stir-fry until tender.
- 5. Stir in the soy sauce, oyster sauce, black pepper, and sugar. Cook for another 2-3 minutes.
- 6. Serve hot with steamed rice.
Nutritional Value
Keywords
Suggested Appetizers and Desserts
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