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Classic Roast Beef Recipe (Slow Cooked Rump Roast)

This is an easy and delicious recipe to make a classic roast beef in the oven using a rump roast. First, you sear the rump roast on the stove at a high temperature, then you slow cook it in the oven for 2.5 hours. Let rest for 30 minutes while you make the gravy. And then serve!
Course Main Course
Cuisine American
Keyword Beef Recipe, Meat Recipe, Roast Beef, Rump Roast
Prep Time 1 hour
Cook Time 2 hours 30 minutes
Total Time 3 hours 30 minutes
Servings 6


For the Roast Beef

  • 3 lbs of Rump Roast

  • 6 cloves of garlic, sliced in half
  • Salt and pepper
  • Garlic powder
  • 2 tablespoon of olive oil

For the Gravy

  • Fat drippings from the cooked roast
  • 1 tablespoon of unsalted butter
  • 1 tablespoon of all-purpose flour
  • 2 cups of beef broth


  • Remove the roast from the oven. Using the tip of a knife, insert the cloves of garlic all over the rump roast.
    Rump Roast Recipe, Classic Roast
  • Season generously with salt, pepper, and garlic powder. You can also use any of your favorite dried herbs and spices. Let sit at room temperature for one hour before cooking. (This helps it cook more evenly).
  • Preheat the oven to 225 degrees. Meanwhile, over high heat, add olive oil to a cast iron pan or dutch oven. When the oil is very hot, sear the rump roast on all sides until it’s brown.
    Rump Roast Recipe in Oven
  • Cook the roast at 225 degrees for 2 to 2.5 hours or until a meat thermometer reads 140°F to 150°F. Remove from oven and let it rest for 30 minutes before cutting.
    Classic Roast Beef Recipe
  • Meanwhile, make the gravy. Using the pan drippings from the roast, melt butter over medium heat and stir into the fat drippings.
  • When the butter is melted, whisk in the flour. Stir to combine.
    How to make Gravy from Drippings
  • Gravy Recipe for Beef Roast
  • Add the beef broth and continue to stir until the gravy is thickened. Add salt and pepper to taste.
    Roast Beef Gravy Recipe
  • Thinly slice the beef roast against the grain. Pour the gravy over the rump roast.
    Rump Roast in Oven Recipe
  • Serve with your favorite sides. Happy eating!