Air fryer Chinese pepper steak with onions is a fast, flavorful dish made with tender strips of beef coated in a savory soy-based marinade, then air-fried until juicy with slightly caramelized edges. The onions soften and become sweet while the beef stays rich and tender. It’s a perfect takeout-style meal you can make at home in minutes.
The air fryer gives the beef a lightly seared texture without a wok, while locking in juices and enhancing the bold peppery flavor. Serve it over rice, noodles, or in lettuce wraps for a lighter option.
🧾 Ingredients
- 1 lb (450g) flank steak, thinly sliced against the grain
- 2 tablespoons soy sauce
- 1 tablespoon oyster sauce (optional but recommended)
- 1 tablespoon cornstarch
- 1 tablespoon oil (sesame or vegetable)
- 1 teaspoon black pepper (freshly ground for best flavor)
- 1 teaspoon garlic powder or 2 cloves minced garlic
- 1 teaspoon ginger (optional, grated or powder)
- 1 bell pepper (sliced)
- 1 medium onion (sliced)
- 1 teaspoon brown sugar or keto sweetener (optional)
- Salt to taste
👨🍳 Instructions
- Marinate the beef
In a bowl, mix sliced steak with soy sauce, oyster sauce, cornstarch, oil, garlic, ginger, and black pepper. Let it sit for 20–30 minutes (longer = more flavor). - Preheat air fryer
Preheat to 200°C (390°F) for 3–5 minutes. - Prepare mixture
Add marinated beef, sliced onions, and bell peppers into a bowl. Toss well. - Air fry
Spread in a single layer in the air fryer basket (cook in batches if needed).
Air fry for 8–12 minutes, shaking halfway through for even cooking. - Check doneness
Beef should be tender and slightly browned on edges, onions soft and slightly caramelized. - Serve hot
Serve immediately over steamed rice, noodles, or lettuce wraps.
🔥 Nutritional Facts (Approx. per serving)
- Calories: 300–380 kcal
- Protein: 30–35 g
- Fat: 18–22 g
- Carbohydrates: 6–10 g
- Fiber: 1–2 g
- Sodium: 600–900 mg
💡 Pro Tips
- Slice beef VERY thin for tenderness
- Don’t overcrowd basket or it will steam instead of sear
- Add a splash of sesame oil after cooking for extra aroma
- For extra “sizzling” effect, serve in a hot pan or plate
- Works great with chicken or lamb too
