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Slow Cooker Rump Roast

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Looking for a hearty dinner that practically cooks itself? This Slow Cooker Rump Roast is tender, flavorful, and made with just a few basic ingredients. Just toss everything in the slow cooker like beef and carrots, let it simmer low and slow. The result? A melt-in-your-mouth beef pot roast that makes your kitchen smell amazing and your dinner table extra cozy.

A plate with sliced pot roast, potatoes, and carrots sits on a marble surface next to a slow cooker, a green towel, and fresh herbs.
Slow Cooker Rump Roast. Photo credit: Best Clean Eating.

I found an old handwritten recipe card tucked inside my grandmother’s cookbook. It simply read, “Rump Roast – slow and steady wins the dinner,” with a little smiley face drawn beside it. Even though she did not have advantage of owning slow cooker, I was sure I can make it her way with a bit of a modern twist. I dusted off my slow cooker and gave it a try, and just like that, it became a new family favorite.

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Effortless Flavorful Dinner

Rump roast in the slow cooker is full of flavor thanks to the long, low cook time. You don’t need any fancy steps, just good seasoning and patience. The meat stays juicy, and the vegetables soak up all the delicious juices. It’s a simple way to make a satisfying, hearty dinner to go with some salad with blue cheese dressing, riced cauliflower or rutabaga fries.

Slow Cooker Rump Roast or Rump Roast in the Crockpot

Whether you call it a slow cooker or a crockpot, the method is the same: low and slow cooking for tender meat. Rump roast works especially well because it becomes soft and shreddable. It’s a hands-off dinner that feels like a treat.

Two white plates with sliced pot roast, whole baby potatoes, carrots, and onion, garnished with rosemary, placed on a marble countertop near a green towel and a slow cooker.
Two white plates with sliced pot roast on a marble countertop.

Roasting Beef Rump Cap

If you ever find a rump cap roast, it’s great for slow cooking too. This cut has a nice fat cap that helps keep the meat moist while it cooks. Let it go low and slow until it’s fork-tender and rich with flavor. Slice it up or shred it, it’s delicious either way.

How To Make the Perfect Beef Slow Cooker Recipe

This hearty dish delivers tender, flavorful beef that melts in your mouth after hours of slow cooking. It’s a comforting meal that’s great for busy days, family dinners, or cozy nights in.

Kitchen Gadgets:

  • Slow Cooker: The star tool that makes this roast tender and flavorful with minimal effort.

Ingredients:

  • Rump Roast: A lean, flavorful cut that gets incredibly tender when cooked low and slow.
  • Baby Carrots: Add a touch of sweetness and color to your hearty dish.
  • Yellow Baby Potatoes: Creamy and soft, they soak up all the savory juices.
  • Onion: Brings rich aroma and depth of flavor to the roast.
  • Beef Broth: Beef stock forms the base of the savory cooking liquid.
  • Salt (adjust to taste): Improves the natural flavors of the roast and veggies.
  • Black Pepper (adjust to taste): Adds a little kick and warmth.
  • Rosemary: A fragrant herb that pairs perfectly with beef.
  • Thyme: Earthy and subtle, it rounds out the flavor profile.

*Exact measurements are listed in the recipe card below.

FULL INSTRUCTIONS WITH STEPS FOR BEEF RUMP ROAST RECIPE

First Step: Prepare Rump Cap

Start by patting the rump roast dry with paper towels to help the seasoning stick better. Prepare other ingredients like baby carrots, baby potatoes, onions, seasoning and herbs.  This simple step makes your cooking process easier.

Top-down view of ingredients for slow cooker rump roast, including raw rump roast, baby carrots, yellow potatoes, onion, thyme, rosemary, beef broth, salt, and black pepper.
Ingredients for Slow Cooker Rump Roast.

Second Step: Place it in the Slow Cooker and Season

Place the rump roast directly into the bottom of your slow cooker. Make sure it sits flat so it cooks evenly. Sprinkle the meat evenly with salt and pepper on all sides. 

Two side-by-side images show a raw beef roast in a slow cooker; the left image is unseasoned, while the right image shows the roast sprinkled with salt and pepper.
A raw beef roast in a slow cooker.

Third Step: Arrange Veggies Around the Meat

Add the baby carrots, yellow baby potatoes, and quartered onion around the roast. Try to distribute the vegetables evenly so they cook at the same rate. Nestling them beside the meat helps them soak up the rich juices.

Three-panel image showing a slow cooker with a raw beef roast and carrots (left), then with added onion pieces (middle), and finally with whole baby potatoes (right).
Slow cooker with a raw beef and veggies.

Fourth Step: Beef Broth and Herbs

Add the rosemary sprig and a few sprigs of thyme right on top. Pour the beef broth gently over the meat and vegetables. These herbs will infuse the whole dish with cozy, savory depth while it simmers.

Two slow cookers each containing a beef roast, baby potatoes, fresh herbs; in the second image, broth is being poured over the ingredients.
Broth is being poured over the ingredients.

Fifth Step: Slow Cook

Cover the slow cooker with the lid and cook on low for 7–8 hours or high for 4–5 hours. The roast is ready when it’s fork-tender and easy to shred or slice. Serve warm with the vegetables and a generous spoonful of the flavorful broth.

A slow cooker filled with a cooked beef roast, baby potatoes, carrots, and broth.
A slow cooker filled with a rump beef, baby potatoes, carrots, and broth.

TRICKS AND TIPS:

  • Sear the Roast First: Browning the rump cut of beef in a pan before placing it in the slow cooker adds a deep, savory flavor. This step isn’t required, but it makes a big difference in taste.
  • Layer Your Vegetables: Place sturdy vegetables like carrots and potatoes at the bottom of the slow cooker. They’ll cook evenly and soak up all the meaty juices for extra flavor.
  • Use Low Heat for Best Results: Cooking on low for 8–10 hours gives the roast time to become tender and juicy. High heat can make it dry or tough, especially with leaner cuts of meat.
  • Don’t Lift the Lid Too Often: Every time you open the lid, heat escapes and slows the cooking process. Trust the slow cooker to do its job. Check only near the end of cooking time.
A plate with slices of pot roast, baby potatoes, and carrots, garnished with rosemary, sits in front of a green towel and a slow cooker.
A plate with slices of rump roast.

FREQUENTLY ASKED QUESTIONS

What to Serve With Slow Cooker Pot Roast?

This hearty roast pairs well with kale salad, pickled watermelon rind, or baked cabbage. A crisp tomato and vegetable salad and protein salad can balance out the richness. You can also serve it over rice or egg noodles for a comforting meal.

How Do I Store Slow Cooker Pot Beef?

Let the roast cool before placing it in an airtight container. Store leftovers in the fridge for up to 4 days. Make sure to include some of the juices to keep the meat moist.

Two white plates with slices of roast beef, baby potatoes, carrots, and onions, garnished with fresh rosemary and thyme on a white surface.
White plates with slices of roasted beef.
Can I Freeze Roasted Rump Beef?

Yes, rump roast freezes well. Slice or shred the meat and store it in freezer-safe bags with some cooking liquid. It will last up to 3 months and can be reheated for quick meals later.

More Clean-Eating Recipes

If you love easy and quick meals, try more of our clean-eating recipes. Our grilled stuffed bell peppers are filled with tasty veggies and lean protein, perfect for a light lunch or dinner. The eggs and feta casserole is a great make-ahead breakfast full of flavor and protein.

Add a splash of brightness with our homemade orange sauce, great on chicken, tofu, or veggies. These simple recipes are all about feeling good while eating well.

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Two white plates with slices of rump roast, whole baby potatoes, and carrots garnished with herbs. Orange header text reads "Slow Cooker Rump Roast.
Two white plates with slices of rump roast.

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A plate of sliced pot roast with baby potatoes, carrots, and onions, garnished with rosemary, sits on a marble countertop near a slow cooker and green kitchen towel.

Slow Cooker Rump Roast

Zuzana Paar
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Looking for a hearty dinner that practically cooks itself? This Slow Cooker Rump Roast is tender, flavorful, and made with just a few basic ingredients. Just toss everything in the slow cooker like beef and carrots, let it simmer low and slow. The result? A melt-in-your-mouth beef pot roast that makes your kitchen smell amazing and your dinner table extra cozy.
Prep Time 5 minutes
Cook Time 8 hours
Course Main Course, Main Dishes
Cuisine American, International
Servings 6 Portions
Calories 396 kcal

Equipment

Ingredients
 
 

  • 2.5 Pounds Rump Roast
  • 1 Pound Baby Carrots
  • 1.5 Pounds Yellow Baby Potatoes
  • 1 Piece Onion peeled and quartered
  • 3 Cups Beef Broth
  • 1 teaspoon Salt adjust to taste
  • 1 teaspoon Black Pepper adjust to taste
  • 1 Sprig Rosemary
  • 3 Sprigs Thyme or 4 sprigs

Instructions
 

  • Start by patting the rump roast dry with paper towels to help the seasoning stick better. Prepare other ingredients like baby carrots, baby potatoes, onions, seasoning and herbs.  This simple step makes your cooking process easier.
  • Place the rump roast directly into the bottom of your slow cooker. Make sure it sits flat so it cooks evenly. Sprinkle the meat evenly with salt and pepper on all sides. 
  • Add the baby carrots, yellow baby potatoes, and quartered onion around the roast. Try to distribute the vegetables evenly so they cook at the same rate. Nestling them beside the meat helps them soak up the rich juices.
  • Add the rosemary sprig and a few sprigs of thyme right on top. Pour the beef broth gently over the meat and vegetables. These herbs will infuse the whole dish with cozy, savory depth while it simmers.
  • Cover the slow cooker with the lid and cook on low for 7–8 hours or high for 4–5 hours. The roast is ready when it’s fork-tender and easy to shred or slice. Serve warm with the vegetables and a generous spoonful of the flavorful broth.

Notes

  • Sear the Roast First: Browning the rump cut of beef in a pan before placing it in the slow cooker adds a deep, savory flavor. This step isn’t required, but it makes a big difference in taste.
  • Layer Your Vegetables: Place sturdy vegetables like carrots and potatoes at the bottom of the slow cooker. They’ll cook evenly and soak up all the meaty juices for extra flavor.
  • Use Low Heat for Best Results: Cooking on low for 8–10 hours gives the roast time to become tender and juicy. High heat can make it dry or tough, especially with leaner cuts of meat.
  • Don’t Lift the Lid Too Often: Every time you open the lid, heat escapes and slows the cooking process. Trust the slow cooker to do its job. Check only near the end of cooking time.

Nutrition

Serving: 1PortionCalories: 396kcalCarbohydrates: 28gProtein: 46gFat: 10gSaturated Fat: 3gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 117mgSodium: 1006mgPotassium: 1400mgFiber: 5gSugar: 5gVitamin A: 10454IUVitamin C: 26mgCalcium: 89mgIron: 6mg

Disclaimer

Please note that nutrient values are estimates only. Variations can occur due to product availability and manner of food preparation. Nutrition may vary based on methods of origin, preparation, freshness of ingredients, and other factors.

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seasoning for roasted meats

Bring out the best in your roasted meats with flavorful seasonings like garlic powder, rosemary, thyme, paprika, and black pepper. A simple blend of herbs and spices can add depth and deliciousness to every bite.

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By Zuzana Paar on July 27th, 2025
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About Zuzana Paar

Welcome to Let's Cook Today, where we make cooking simple and delicious together. Join me as we whip up tasty recipes that turn every mealtime into a food adventure. Whether you're cooking for yourself, your family, friends, or hosting a party, we've got the perfect portions and flavors to make every dish a delight. Let's cook together and savor the joy of creating amazing meals, effortlessly.

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