Slow Cooker Roast Beef with Herb Garlic Butter Recipe
Tender and flavorful slow cooker roast beef infused with a garlic herb butter rub, cooked low and slow with onions for a perfect, juicy meal.
- Prep Time: 15 minutes
- Cook Time: 6-8 hours on low or 4-6 hours on high
- Total Time: 6 hours 15 minutes to 8 hours 15 minutes
- Yield: 6 servings 1x
- Category: Main Course
- Method: Slow Cooking
- Cuisine: American
Ingredients
Scale
Garlic Herb Butter Rub
- ¼ cup butter (softened)
- 2 garlic cloves (pressed)
- 2 teaspoons finely chopped fresh rosemary
- 1 teaspoon dried oregano
- 1 teaspoon salt
- 1 teaspoon freshly ground black pepper
- 1 teaspoon dried thyme leaves
Roast Beef
- 1 beef bottom round roast (3–4 pounds)
- 3 onions (quartered, skins removed)
Instructions
- Prepare Garlic Butter Rub: In a small bowl, combine the softened butter with pressed garlic cloves, finely chopped fresh rosemary, dried oregano, salt, freshly ground black pepper, and dried thyme leaves. Mix well until evenly incorporated.
- Apply the Rub: Pat the beef bottom round roast dry using paper towels. Generously slather the garlic herb butter mixture all over the roast on every side to ensure full flavor penetration during cooking.
- Setup Slow Cooker: Quarter the onions and peel off the skins. Place the onions evenly across the bottom of the slow cooker. Position the roast beef on top of the onions with the fatty side facing down. This allows the fat to baste the meat as it cooks.
- Cook the Roast: Cover the slow cooker with the lid. Cook on low heat setting for 6 to 8 hours or on high heat for 4 to 6 hours until the beef is tender and easily sliced.
- Finish and Serve: Carefully remove the roast from the slow cooker. Thinly slice the beef against the grain. Serve the sliced meat with the cooked onions and spoon the reserved cooking juices over the top or use them to make a flavorful gravy.
Notes
- For best results, let the roast rest for 10 minutes after cooking before slicing to retain juices.
- You can add carrots or potatoes to the slow cooker for a complete meal.
- Reserve cooking juices can be thickened with flour or cornstarch for a rich gravy.
- Ensure the roast is fully thawed before cooking to guarantee even cooking.
- Use a meat thermometer to check for an internal temperature of at least 145°F for medium doneness.
Keywords: slow cooker roast beef, garlic butter roast beef, easy roast beef recipe, crockpot beef roast, herb butter beef roast
