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Dinner · Part 2 of 3: Instructions

Slow Cooker Sliced Rump Roast with Savory Brown Gravy Step-by-step instructions

A close-up of tender, slow-cooked rump roast slices covered in a rich
Prep
Cook
Total
Serves
6
Includes 10 min resting

Before you start

Before you begin, ensure your slow cooker insert is clean and dry. Prepare the beef rump roast by slicing it into uniform, thick slices, which helps ensure that every piece cooks evenly. Peel and slice the yellow onion into clean half-moons.

Gather all your ingredients and measure out the beef broth to ensure a smooth assembly process. Have your slow cooker positioned in a convenient spot in your kitchen near an outlet, away from any clutter, so you can safely add the ingredients without unnecessary spills or accidents during the setup.

Ingredients at a glance (4)
  • 3 lb beef rump roast, sliced
  • 1 large yellow onion, sliced into half-moons
  • 1 packet brown gravy mix
  • 2 cups beef broth

Instructions

Preparation

  1. Layering the ingredients
    Place the sliced beef rump roast into the slow cooker insert, ensuring the slices are evenly distributed. Layer the sliced yellow onions over the top of the beef.
    Look for The beef should be arranged in a single layer or slightly overlapping to ensure even cooking.
    Tip Avoid overcrowding the slow cooker too much to allow the heat to circulate effectively.

At the end of this phase, the beef slices should be neatly arranged in the slow cooker insert. The onion slices should be distributed evenly over the meat, creating a base that will flavor the roast as it cooks.

Ensure that your slow cooker is placed on a level, heat-resistant surface and that the power cord is properly connected. Everything should be ready for the addition of the liquid and seasoning, setting the stage for a consistent and flavorful final result.

Seasoning

  1. Adding the seasonings and liquid
    Sprinkle the brown gravy mix evenly over the onion and beef layer. Pour the beef broth over the entire contents of the slow cooker insert.
    Look for Ensure the gravy mix is evenly distributed to prevent clumping during the cooking process.
    Tip Pouring the broth slowly helps to distribute the gravy mix across the surface.

After adding the brown gravy mix and beef broth, everything should be well-incorporated. The gravy mix should be lightly dusted over the surface, and the broth should surround the beef and onions without overflowing the insert. The slow cooker is now ready to be covered and turned on. Check that the lid is tightly sealed to ensure that the moisture and heat remain trapped inside throughout the entire cooking cycle, which is essential for the slow braising process.

Cooking

  1. Slow cooking and resting
    Cover the slow cooker and cook on low for 8 hours until the beef is fork-tender and reaches an internal temperature of at least 145°F (63°C). Once cooked, let the meat rest for 10 minutes before serving.
    Look for The beef is done when it is very soft and pulls apart easily with a fork.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Checking the temperature ensures the beef is safely cooked while maintaining its tenderness.

When the cooking time is complete, the kitchen should be filled with a rich, savory aroma. The beef should be extremely tender and the gravy should be thick and flavorful. The onions will have softened significantly, almost melting into the sauce. Before serving, verify the internal temperature of the beef to ensure it is safely cooked. The dish should look inviting, with the beef slices perfectly coated in the glossy, dark brown gravy, ready to be served hot.

Common mistakes

A common mistake is using a cut of meat that is too lean without enough marbling, which can result in dry beef despite the long cooking time. Avoid lifting the lid frequently during the cooking process, as this releases heat and moisture, significantly increasing the time needed for the beef to become tender.

Also, ensure the brown gravy mix is evenly distributed; clumping can lead to uneven seasoning in the final sauce. Finally, do not forget to let the roast rest, as cutting it immediately will cause all the juices to escape.

How to tell it’s done

The beef is perfectly done when it is fork-tender and can be easily pierced with minimal resistance. Use a meat thermometer to check that the thickest part of the meat has reached an internal temperature of at least 145°F (63°C).

Resting the meat for at least 10 minutes after cooking is crucial, as this allows the juices to redistribute throughout the slices, ensuring each bite is as moist and flavorful as possible. If the meat still feels tough, it may need an additional 30 to 60 minutes of cooking time.

  • Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest

Coming up in Part 3: common questions

  • Can this be made in a pressure cooker instead of a slow cooker?
  • Why does the gravy sometimes turn out too thin?
  • Is it necessary to sear the beef before slow cooking?

Also in Part 3: variations (Mushroom and Beef Roast, Herbed Beef Roast), storage and make-ahead, and the printable recipe card.

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)