Dinner · Part 2 of 3: Instructions
Easy Crockpot Beef and Broccoli Takeout Fakeout Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before starting, ensure all your ingredients are measured and ready. Slice the beef sirloin into uniform, thin strips to ensure even cooking. Mince the garlic finely to release its aromatic oils. Prepare the cornstarch slurry by mixing cornstarch with a small amount of cold water until smooth.
Have your broccoli florets washed and dried. Make sure your slow cooker basin is clean and dry before you begin layering the ingredients, and ensure you have a serving platter or individual bowls ready for the final assembly.
Ingredients at a glance (10)
- 2.5 lb beef sirloin, sliced
- 120 ml beef broth
- 80 ml soy sauce
- 60 ml oyster sauce
- 30 g brown sugar
- 1 tbsp sesame oil
- 5 cloves garlic, minced
- 400 g fresh broccoli florets
- 1 tbsp cornstarch slurry
- sesame seeds, for serving
Instructions
Preparation and Layering
- Layer the IngredientsPlace the sliced beef sirloin into the slow cooker basin. Add the beef broth, soy sauce, oyster sauce, brown sugar, sesame oil, and minced garlic. Stir gently to combine the ingredients, ensuring the beef is well-coated in the sauce mixture.Look for The beef should be evenly distributed and submerged in the liquid base.Tip Ensure the beef slices are uniform in thickness to promote even cooking throughout the process.
At this stage, you have successfully combined the beef, aromatics, and liquids in the slow cooker. Everything is raw and ready for the slow, steady heat.
The mixture should look well-integrated, with the beef submerged in the sauce. Ensure the lid is securely in place to begin the cooking process.
Slow Cooking
- Slow Cook the BeefCover the slow cooker with its lid and set it to cook on the LOW setting for 4.5 hours. Maintain a steady temperature to ensure the meat becomes tender and the flavors meld effectively without drying out the sirloin.Look for The beef should look tender and the cooking liquid should be fragrant.Tip Avoid lifting the lid unnecessarily during the cooking process to maintain a consistent internal temperature.
After 4.5 hours of cooking on low, the beef should be tender and the kitchen should be filled with the savory aroma of soy and garlic. The meat is now ready for the final step. Check that the liquid base has reduced slightly and is ready for the broccoli and slurry.
Final Finishing
- Add Broccoli and FinishAfter 4.5 hours, add the broccoli florets and the cornstarch slurry to the slow cooker. Stir gently to incorporate. Continue cooking on LOW for an additional 30 minutes until the broccoli is tender-crisp and the sauce has thickened to a glossy consistency. Add the sesame seeds as a final garnish. Ensure the beef reaches an internal temperature of at least 145°F (63°C). Let the beef rest for at least 5 minutes before serving.Look for The broccoli should be bright green and crisp-tender, and the sauce should cling to the meat.Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)Tip Add the broccoli only in the final phase to prevent it from becoming mushy.
Once the broccoli and slurry have been added and cooked for the final 30 minutes, the dish is complete. The sauce should be thick, glossy, and coating the beef and broccoli. The broccoli should be bright green and tender-crisp. Confirm the beef is safe to eat and serve immediately.
Common mistakes
A common mistake is adding the broccoli too early, which leads to overcooked, mushy vegetables that lose their color and texture. Another error is failing to slice the beef against the grain, which can result in tougher meat.
Ensure you do not skip the cornstarch slurry, as this is vital for achieving the signature glossy sauce. Finally, avoid lifting the lid during the slow cooking process, as this releases heat and moisture, significantly increasing the total cooking time required.
How to tell it’s done
The beef is perfectly cooked when it is tender and reaches an internal temperature of 145°F (63°C). The broccoli should be vibrant green and tender-crisp, not mushy. The sauce should be glossy and thick enough to coat the back of a spoon.
Use a reliable digital meat thermometer to verify the temperature of the thickest piece of beef before serving, and allow it to rest for at least 5 minutes to ensure the juices redistribute for maximum tenderness.
- Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)