Sizzling Beef and Onion Stir-Fry Step-by-step instructions

Before you start

Before starting the cooking process, ensure all your ingredients are prepped and ready within arm's reach of the stove. Stir-frying happens very quickly, so there is no time to chop vegetables once the heat is turned on.

Have your beef sliced, your onions and peppers prepared, and your serving plates near the stove so the food stays hot during the final plating stage. Clear your workspace to allow for fluid movement while tossing the ingredients.

Instructions

Preparation phase

1. 1Prepare the ingredients
   Slice the beef into thin, even strips against the grain to ensure tenderness. Slice the onions and peppers into uniform strips so they cook evenly in the hot skillet.
   Look for Ensure all vegetables are sliced to a similar thickness.
   Tip Chilling the beef for 15 minutes before slicing makes it easier to cut into thin strips.

At the end of this phase, all ingredients should be uniformly sliced and ready for the pan. The beef should be dry, and the vegetables should be in a bowl ready to be added to the heat.

Having everything pre-portioned ensures the cooking process remains smooth and prevents any ingredients from burning while you scramble to find another item.

Searing phase

2. 2Sear the beef and vegetables
   Place the cast-iron skillet over high heat. Add the beef strips and sear until browned on all sides. Add the onions and peppers, tossing continuously until the onions are caramelized and the vegetables are tender-crisp. Ensure the beef reaches an internal temperature of 145°F (63°C), then remove from heat and let rest at least 3 minutes.
   Look for The beef should be browned and the onions should look soft and golden.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Do not overcrowd the pan, as this prevents the beef from searing properly.

The kitchen should smell aromatic and savory as the beef hits the hot iron. You will hear a loud, consistent sizzle, which is a sign that the temperature is correct. The beef should turn a deep brown color, and the onions should begin to soften and become translucent. If the pan seems dry, be careful of splattering.

Finishing phase

3. 3Finish and serve
   Transfer the rested beef strips and caramelized vegetables onto a warm plate. Serve immediately while the dish is still steaming and fragrant.
   Look for The dish should be steaming and fragrant.
   Tip Serve with steamed rice or noodles for a complete meal.

The final phase is complete when the ingredients are fully cooked and have a glossy, rich appearance. The onions should be fully caramelized and tender, and the peppers should have softened but still hold their shape. The dish should be steaming and fragrant, ready for immediate transfer to a warm plate for that final, delicious bite.

Common mistakes

A common mistake is overcrowding the skillet, which lowers the temperature and causes the beef to steam in its own juices rather than sear. Work in batches if your skillet is small.

Another error is failing to dry the beef strips thoroughly with a paper towel before cooking; excess surface moisture prevents the meat from browning effectively. Finally, avoid overcooking the vegetables, as they should retain a slight, pleasant crispness that complements the tender beef perfectly.

How to tell it’s done

The beef is done when it is browned on the outside and reaches an internal temperature of 145°F (63°C). Because the pieces are thinly sliced, they cook rapidly.

It is important to watch the color of the beef closely; once it is no longer pink and the juices run clear, it is ready. Always let the meat rest for at least 3 minutes before serving to allow the juices to redistribute, ensuring every bite is moist and tender.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest