Pepper steak is a beloved dish that brings together tender, rich beef and crisp, fresh bell peppers in a savory, flavorful sauce. It captures everything good about Chinese cuisine — simple ingredients, quick cooking, and bold flavor. With the rise of pressure cooking, this dish has become even easier and faster to make at home, and thanks to the Instant Pot, you can have it on the table in under 30 minutes.

This version simplifies the process without giving up any of the taste or texture. The real key to getting it right lies in how precisely the beef and peppers cook, which the Instant Pot handles with very little effort on your part. Whether you’re new to pressure cooking or a seasoned pro, this recipe walks through exactly how to get tender beef and vibrant peppers every time.

A few things that make this pepper steak recipe stand out:

• It’s genuinely fast. The whole dish comes together in under 30 minutes thanks to pressure cooking.
• Flank steak is the right cut for this method. It’s tender, flavorful, and holds up well under pressure when sliced thin.
• The sauce is carefully balanced. A blend of low-sodium and regular soy sauce, rice vinegar, ginger, and brown sugar creates real depth without overpowering the beef and peppers.
• The peppers stay crisp. Sautéing them separately and reintroducing them at the end protects their texture and color.
• It’s highly adaptable. Heat level, vegetables, and sweetness can all be adjusted to taste.

Mise en Place: Getting Your Components Organized

This recipe breaks into three parts: the beef and vegetables, the sauce base, and the cornstarch slurry used to thicken everything at the end.

Main ingredients:

• 1 tablespoon cooking oil (olive oil, canola oil, or any neutral oil)
• 2 bell peppers, thinly sliced (a mix of colors works well for visual appeal)
• 1 pound flank steak, thinly sliced against the grain (about ⅛ inch thick)
• ¾ cup water

Sauce ingredients:

• 2 tablespoons low-sodium soy sauce
• 1 tablespoon regular soy sauce
• 1½ tablespoons rice vinegar
• 2½ teaspoons grated ginger (fresh is best)
• 1 tablespoon brown sugar
• ¼ teaspoon ground black pepper

Thickening slurry:

• 2½ tablespoons cornstarch
• 3 tablespoons water

Understanding What Each Ingredient Does

Flank steak is used specifically for its tenderness and flavor when sliced thin, and because it cooks quickly and holds up well under pressure — making it genuinely well-suited to this cooking method rather than an arbitrary choice.

Bell peppers add fresh crunch and a slight sweetness, and thanks to how they’re handled in this recipe — sautéed briefly, then set aside until the end — they retain their texture even after the beef’s pressure cooking time.

The blend of soy sauces is a deliberate balance: low-sodium soy sauce keeps the overall salt content in check, while a smaller amount of regular soy sauce adds extra richness and depth. Combined with rice vinegar, this creates a sauce that complements the beef and peppers without overwhelming them.

Rice vinegar contributes a subtle tang that cuts through the richness of the soy sauce and beef.

Ginger brings warmth and a layer of aromatic depth that’s central to the dish’s flavor profile.

Brown sugar adds a touch of sweetness that balances the saltiness of the soy sauces.

Cornstarch, mixed into a slurry, is what turns the cooking liquid into a glossy, flavorful coating for the beef and peppers — this thickened texture is a big part of what makes pepper steak feel satisfying rather than thin or watery.

Workflow: How This Dish Comes Together

Step 1 — Sauté the peppers. Add the oil to the Instant Pot and set it to the sauté function. Once the oil is hot, add the sliced bell peppers. Stir occasionally, cooking for about 2 to 3 minutes, until tender but still crisp — you want them to hold their shape and color. Remove them from the pot and set aside.

Step 2 — Prepare the sauce. Add the water, both soy sauces, rice vinegar, grated ginger, brown sugar, and black pepper to the Instant Pot. Stir together until smooth and well combined.

Step 3 — Add the beef. Add the thinly sliced flank steak to the pot and stir it into the sauce, breaking up the slices so they don’t clump together. This helps the beef absorb the sauce’s flavor as it cooks.

Step 4 — Pressure cook. Seal the Instant Pot and cook on high pressure for 10 minutes — enough time to cook the beef through without overcooking it. Use a quick release once the time is up; a natural release risks overcooking the beef.

Step 5 — Thicken the sauce. While the beef cooks, whisk together the cornstarch and 3 tablespoons of water to make a slurry. Once the pressure has released and the pot is open, stir the beef and sauce, then pour in the cornstarch slurry, stirring quickly to avoid clumping. The sauce will thicken into a glossy coating.

Step 6 — Reintroduce the peppers. Add the sautéed bell peppers back into the pot and stir to combine with the beef and sauce. Set the Instant Pot back to sauté and cook everything together for about 1 minute, letting the flavors meld while the peppers heat through without losing their crispness.

Step 7 — Serve. Once everything is coated in the thickened sauce, it’s ready to serve. Pepper steak pairs well with steamed rice or a low-carb substitute like cauliflower rice, and a garnish of sesame seeds or chopped green onions adds a nice finishing touch.

Assembly Strategy and Technique Notes

• Slice the beef thin and against the grain. This is what keeps the flank steak tender rather than chewy after pressure cooking.
• Don’t skip the quick release. A natural release holds the beef under residual heat longer, risking overcooked meat.
• Stir the cornstarch slurry in quickly. Adding it gradually or letting it sit can cause clumping instead of a smooth, glossy sauce.
• Keep the peppers separate until the final step. Sautéing them briefly and setting them aside is what protects their crunch and color through the rest of the cooking process.
• Adjust seasoning to taste before serving. The balance of soy sauce, ginger, and sugar is flexible, so feel free to nudge it in the direction you prefer.

Customizing This Recipe

• Adjust the heat. Red pepper flakes, sliced jalapeños, or a dash of sriracha all work well if you want some spice.
• Swap the vegetables. Onions, mushrooms, or snap peas can stand in for or join the bell peppers for different texture and flavor.
• Make it gluten-free. Tamari or coconut aminos can substitute for the soy sauce.
• Adjust the sweetness. Increase or decrease the brown sugar to taste, or swap in honey or maple syrup for a different kind of sweetness.

Serving Ideas

This pepper steak pairs naturally with steamed rice, or cauliflower rice if you’re keeping things lower-carb. A garnish of sesame seeds or chopped green onions adds extra flavor and a bit of visual polish.

Yield and Timing

• Cook Time: About 10 minutes on high pressure, plus sautéing and thickening steps
• Total Time: Under 30 minutes

---

Instant Pot Chinese Pepper Steak

Description: Tender flank steak and crisp bell peppers coated in a glossy, savory-sweet sauce built from soy sauce, rice vinegar, ginger, and brown sugar, pressure-cooked for a quick, authentic Chinese-style dinner in under 30 minutes.

Duration: Total Time: under 30 minutes (includes sautéing, 10-minute pressure cook, and thickening)

Ingredients

• 1 tablespoon cooking oil (olive or canola oil)
• 2 bell peppers, thinly sliced (about ⅓ inch thick)
• 1 lb flank steak, thinly sliced against the grain
• ¾ cup water
• 2 tablespoons low-sodium soy sauce
• 1 tablespoon regular soy sauce
• 1½ tablespoons rice vinegar
• 2½ teaspoons grated ginger
• 1 tablespoon brown sugar
• ¼ teaspoon ground black pepper
• 2½ tablespoons cornstarch
• 3 tablespoons water

Instructions

1. Heat the oil in the Instant Pot using the sauté function. Add the sliced bell peppers and cook until tender but still crisp, about 2 to 3 minutes. Remove and set aside.
2. In the Instant Pot, combine the water, low-sodium soy sauce, regular soy sauce, rice vinegar, ginger, brown sugar, and black pepper. Stir well.
3. Add the sliced flank steak and stir to combine with the sauce.
4. Seal the Instant Pot and cook on high pressure for 10 minutes. Use a quick release once done.
5. Whisk the cornstarch and 3 tablespoons of water into a slurry. Stir it into the beef and sauce to thicken.
6. Add the sautéed bell peppers back into the pot and sauté everything together for about 1 minute.
7. Serve over rice or your preferred substitute.

Notes

• Slice the flank steak thin and against the grain for the most tender result.
• Use a quick release rather than a natural release to avoid overcooking the beef.
• Stir the cornstarch slurry in quickly to prevent clumping.
• Adjust heat, vegetables, soy sauce type, or sweetness level to suit your preferences.
• Garnish with sesame seeds or chopped green onions before serving.

Medical Disclaimer: The information provided in this recipe is for general informational purposes only and is not intended as medical, dietary, or professional nutritional advice. This recipe contains soy and is not gluten-free unless tamari or coconut aminos are substituted for the soy sauce. This recipe is not intended to diagnose, treat, cure, or prevent any disease or health condition. Individuals with food allergies, dietary restrictions, or specific health concerns (including but not limited to soy allergies, gluten sensitivity, or sodium intake) should consult a physician, registered dietitian, or other qualified healthcare provider before preparing or consuming this dish. As this recipe involves cooking raw beef, ensure it reaches a safe internal temperature before serving. The creator of this content assumes no liability for any adverse effects resulting from the preparation or consumption of this recipe.