Place the rump roast in the slow cooker and season with salt and pepper.
Next, peel and quarter the onion. Dice your veggies and add the carrots to your slow cooker.
Add all remaining ingredients in the slow cooker.
Finally pour in the beef broth.
Cook on low for 7-8 hours or on high for 4-5 hours.
Once cooked, cut the slow cooker roast beef and serve warm.
Notes
Thickening Agent: Create a slurry with cornstarch and water to thicken the beef broth to your desired consistency.Low Sodium Option: Opt for low-sodium broth and monitor the seasoning to create a healthier version of this delectable pot roast recipe.