Dinner · Part 2 of 3: Instructions
Slow Cooker Root Beer Shredded Beef for Easy Weeknight Dinners Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before you begin, gather all your ingredients and ensure your slow cooker is clean and ready. It is important to remove the beef from the refrigerator about 20 to 30 minutes before placing it in the slow cooker to take the chill off, which helps with more even cooking.
Prepare the red onions by slicing them into thin, even strips, which will help them soften and melt into the sauce during the long cooking process. Have your measuring tools and forks ready for the shredding stage, as this will make the final assembly much smoother and more efficient once the beef is fully cooked.
Ingredients at a glance (4)
- 3 lb beef chuck roast
- 1 medium red onion, sliced
- 2 tbsp steak seasoning
- 1 1/2 cups root beer barbecue sauce
Instructions
Preparation and assembly
- Assemble the ingredientsPlace the beef chuck roast into the bottom of the slow cooker. Scatter the sliced red onions evenly over the top of the beef. Sprinkle the steak seasoning across the surface of the meat and onions, then pour the root beer barbecue sauce over everything.Look for The beef is at the bottom, topped with onions, spices, and sauce.Tip Ensure the beef is lying flat so it cooks evenly in the liquid.
At this stage, you should see the raw beef nicely nestled at the bottom of the slow cooker, covered with a layer of onions and a generous coating of seasoning and sauce. Everything should be arranged in an even layer to ensure consistent heat distribution.
Before you proceed to the cooking phase, ensure the lid is securely in place, as a tight seal is crucial for trapping the moisture and heat that will transform the beef into a tender, succulent meal over the next several hours.
Slow cooking process
- Slow cook the beefCover the slow cooker with its lid. Cook on the low setting for 8 hours until the beef is very tender and shreds easily with a fork. Ensure the meat reaches an internal temperature of 145°F (63°C) and let the meat rest at least 3 minutes before shredding.Look for The meat pulls apart easily with a fork and is very tender.Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)Tip Do not lift the lid during the first 6 hours to maintain steady heat.
During this long phase, the slow cooker will do all the work. You should periodically check that the unit is on the correct low setting and that the environment remains stable. Toward the end of the cooking time, you will notice a rich, savory aroma filling the kitchen. The beef should look dark, glossy, and very soft. The onions will have almost completely broken down into the sauce, creating a thick, flavorful base that is ready to be combined with the shredded meat.
Shredding and finishing
- Shred and serveOnce the beef is cooked and has rested, remove the meat to a cutting board. Shred the beef using two forks, then return it to the slow cooker to toss with the cooking juices. Let the meat rest for 10 minutes before serving on rolls.Look for The beef is fully shredded and coated in the glossy sauce.Tip Remove any excess fat pieces while shredding for a cleaner texture.
After the beef has rested, it should shred easily with two forks. The meat fibers will pull apart into thin, tender strands. Once shredded, toss the meat thoroughly with the juices remaining in the slow cooker to ensure every piece is coated in the flavorful sauce. The final dish should be steaming hot, moist, and ready to be served immediately. Check that the final mixture is well-combined and that the sauce has achieved a glossy, thick consistency before plating the meat.
Common mistakes
A common mistake is rushing the cooking time by using a high heat setting, which can result in tough, dry meat instead of the desired tender, shredded texture. Another error is removing the lid frequently during the cooking process, which releases essential heat and steam, significantly increasing the total time needed to cook the beef.
Finally, avoid adding too much extra liquid at the start; the beef and onions will release a significant amount of moisture as they cook, and you want the final sauce to have a thick, concentrated flavor rather than a watered-down consistency.
How to tell it’s done
The beef is done when it is extremely tender and pulls apart effortlessly with the use of two forks. To be certain, use a digital meat thermometer inserted into the thickest part of the roast to ensure it has reached a safe internal temperature of at least 145°F (63°C).
Once you have confirmed the temperature, let the meat rest for at least 10 minutes before shredding. This resting period allows the juices to redistribute throughout the meat, ensuring every bite remains juicy and flavorful when mixed back into the cooking liquid.
- 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)