Easy Crockpot Kung Pao Beef for Busy Weeknights Step-by-step instructions

Before you start

Before beginning, ensure all ingredients are properly measured and prepared. The flank steak must be sliced into thin, uniform strips against the grain to ensure tenderness. Chop the green bell peppers into bite-sized pieces so they cook evenly alongside the meat.

Have the Kung Pao sauce ready in a glass measuring cup for easy pouring, and ensure your slow cooker is clean and placed on a stable, heat-resistant surface near a power outlet.

Instructions

Preparation and Layering

1. 1Layer the Ingredients
   Place the sliced flank steak at the bottom of the slow cooker basin. Distribute the chopped green bell peppers evenly over the meat, then sprinkle the crushed red pepper flakes across the top.
   Look for Ingredients should be layered evenly to ensure proper heat distribution during the slow cooking process.
   Tip Slicing the steak against the grain ensures the meat remains tender after the long cooking time.

At the end of this phase, the ingredients should be neatly layered in the slow cooker basin. The beef should be at the bottom, covered by the bell peppers and red pepper flakes. Check that the slow cooker is plugged in and ready to begin the cooking cycle, ensuring that no ingredients are stuck to the sides of the insert where they might burn during the long, slow heating process.

Slow Cooking

2. 2Add Sauce and Cook
   Pour the Kung Pao sauce over the layered beef and peppers. Cover the slow cooker and cook on low for 4 hours, or until the beef reaches an internal temperature of 145°F (63°C). Once cooked, remove the beef and let it rest for at least 3 minutes before serving.
   Look for The sauce will bubble and thicken slightly as it coats the beef and vegetables during the cooking cycle.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Resist the urge to open the lid frequently, as this releases heat and increases the required cooking time.

During this phase, the kitchen will fill with the savory aroma of the Kung Pao sauce. By the end of the four-hour cycle, the beef should be tender and the peppers should be cooked through but still hold their shape.

Check the internal temperature of the beef to confirm it has reached 145°F (63°C) before proceeding, ensuring the sauce has reduced slightly to a thick, glossy consistency.

Serving and Plating

3. 3Serve
   Serve the tender beef warm over steamed rice and top with roasted peanuts for added texture and crunch.
   Look for The beef should be glossy and tender, and the sauce should have a rich, deep color coating all ingredients.
   Tip Serving immediately ensures the peanuts remain crunchy against the warm, tender beef and sauce.

In this final phase, the dish is ready for plating. The beef and sauce should be served immediately over fluffy steamed rice. The final check involves verifying that the roasted peanuts are ready to be sprinkled on top. The dish should look vibrant with the color of the green peppers contrasting against the dark, rich sauce and the tender strips of cooked flank steak.

Common mistakes

A common mistake is failing to slice the beef against the grain, which leads to a tough and chewy texture regardless of the cooking time. Another frequent error is overcrowding the slow cooker or layering ingredients incorrectly, which can lead to uneven cooking.

Avoid adding too much liquid, as the beef and peppers will release their own juices during the process, which can dilute the flavor of the Kung Pao sauce if the initial amount is excessive.

How to tell it’s done

The beef is considered done when it is tender enough to be easily pierced with a fork and reaches an internal temperature of at least 145°F (63°C). The sauce should appear glossy and thick, coating the beef and peppers in a savory glaze.

Because slow cookers vary in their heat intensity, use a meat thermometer to verify the temperature of the thickest piece of steak before serving to ensure it is cooked through correctly.

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