Easiest Slow Cooker Rump Roast
There’s nothing quite like the comfort of a slow-cooked roast that fills your home with irresistible aromas and delivers tender, flavorful beef with minimal effort. This Easiest Slow Cooker Rump Roast is a personal favorite of mine because it’s so simple yet always turns out perfectly. Whether you’re feeding a crowd or prepping for leftovers, this dish is sure to impress without keeping you tied to the kitchen.

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History
Slow cookers, like the popular Crock Pot, were first sold in 1971, and from day one, people were slow cooking economical cuts of meat like rump roasts. The convenience of throwing ingredients into a Crock-Pot and letting them cook all day resonates with modern home cooks who balance busy schedules with a desire for delicious, wholesome meals, making this a popular recipe even more than 50 years later.
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Ingredients
- Rump roast – Or any other quality pot-roast cut of beef.
- Yellow baby potatoes – Baby red potatoes would also work well, but avoid russets as they will fall apart more easily.
- Baby carrots – You could also use regular carrots, just cut them into 1-inch chunks.
- Beef broth – I cook with low or no sodium-added broth to control the salt.
- Onion – Yellow aka brown onions are the best for this recipe./
- Spices – Rosemary and thyme
- Salt and pepper – To taste, but season the beef well on both sides with salt and pepper.

How To Make Slow Cooker Rump Roast
Scroll down for the full recipe card with exact measurements and printable instructions.
Place your rump roast in the slow cooker and sprinkle it generously with salt and black pepper, making sure all sides are well-seasoned. I like using a small silicone brush to help spread the seasoning evenly if I want every bite to be flavorful.

Peel a sweet onion and cut it into quarters. Arrange the onion pieces around the roast in the slow cooker so they can mingle with the meat and add natural sweetness.
Add yellow baby potatoes and baby carrots, distributing them evenly around the roast. This ensures the vegetables cook perfectly and soak up all the delicious juices.



Pour the beef broth into the slow cooker, just enough to cover the bottom. This makes a flavorful base that keeps everything tender and juicy.
Tuck in rosemary and thyme sprigs into the broth around the roast. These herbs will infuse the meat with amazing fragrance while it cooks.

Cover the slow cooker with the lid and set it on low for 7 to 8 hours or high for 4 to 5 hours. The low and slow method gives the most tender, melt-in-your-mouth results.

Check the roast for doneness by inserting a fork. It should be tender and easy to slice or shred. I like using a meat thermometer to make sure it is perfectly cooked without overcooking.
Transfer the roast to a cutting board and slice or shred it to your liking. Serve it warm with the vegetables and spoon some of the flavorful juices over the top for extra comfort.

Chef Jenn’s Tips
- The beauty of slow cooking is that you can use inexpensive cuts of meat and they always turn out great! To save more money, buy your roast when it’s on sale and pop it into the freezer until you’re ready to cook it. Just thaw for about 24 hours in the fridge.
- If you prefer your veggies to have a bit more texture, remove them from the slow cooker after about 3 hours on high, or 5 hours on low.
- Don’t skip the fresh herbs; they infuse the dish with a subtle, aromatic flavor that elevates the entire meal.
- If you prefer a thicker gravy, remove some of the cooking liquid after the roast is done, simmer it in a saucepan with a slurry of cornstarch and water, and serve over the roast.
- Avoid lifting the lid during cooking as it releases heat and extends the cooking time.
Serving Suggestions
This Easiest Slow Cooker Rump Roast pairs beautifully with simple sides like crusty bread to soak up the rich broth or a fresh green salad for balance. For a more indulgent meal, serve it alongside creamy mashed potatoes or roasted Brussels sprouts for added texture and flavor. The dish also goes great with a glass of bold red wine to complete the dining experience.

Storage
Leftovers of this rump roast store wonderfully. Allow the roast and vegetables to cool completely before transferring them to an airtight container. Store leftovers in the fridge for up to 4 days. Reheat gently in a saucepan with a bit of the cooking liquid to keep it moist.
To freeze, place the roast and vegetables in freezer-safe containers with some of the broth to maintain their flavor and texture. Freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.

Easiest Slow Cooker Rump Roast
Ingredients
- 2 ½ pounds rump roast or any other boneless pot-roast cut of beef
- 1 ½ pounds yellow baby potatoes cleaned
- 1 pound baby carrots
- 2 cups beef broth use low or no sodium added broth
- 1 onion peeled and quartered
- 1 sprig rosemary
- 3 – 4 sprigs thyme
- 1 teaspoon salt or to taste
- 1 teaspoon black pepper or to taste
Instructions
- Place the rump roast in the slow cooker and sprinkle it generously with salt and black pepper, ensuring all sides are well-seasoned.
- Peel the onion and cut it into quarters, then arrange the pieces around the roast in the slow cooker.
- Add the yellow baby potatoes and baby carrots, distributing them evenly around the meat for even cooking.
- Pour the beef broth into the slow cooker, making sure it coats the bottom of the pot to create a flavorful base.
- Nestle the rosemary and thyme sprigs into the broth around the roast to infuse the dish with aromatic herbs.
- Cover the slow cooker with the lid and set it to cook on low for 7-8 hours or on high for 4-5 hours, depending on your time preference.
- Test the roast for doneness by inserting a fork—it should be tender and easy to shred or slice.
- Transfer the cooked roast to a cutting board, slice or shred it to your liking, and serve it warm alongside the perfectly cooked vegetables.
Notes
Chef Jenn’s Tips
- The beauty of slow cooking is that you can use inexpensive cuts of meat and they always turn out great! To save more money, buy your roast when it’s on sale and pop it into the freezer until you’re ready to cook it. Just thaw for about 24 hours in the fridge.
- If you prefer your veggies to have a bit more texture, remove them from the slow cooker after about 3 hours on high, or 5 hours on low.
- Don’t skip the fresh herbs—they infuse the dish with a subtle, aromatic flavor that elevates the entire meal.
- If you prefer a thicker gravy, remove some of the cooking liquid after the roast is done, simmer it in a saucepan with a slurry of cornstarch and water, and serve over the roast.
- Avoid lifting the lid during cooking as it releases heat and extends the cooking time.
Nutrition
A Note on Nutritional Information
Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed.