Ingredients
Method
- Cut the sirloin tip roast into 2-inch cubes and trim away any silver skin. Place the beef cubes in a large bowl and season with garlic salt and black pepper. Toss well to coat evenly.
- Heat olive oil in a skillet over medium-high heat. Add the beef cubes in a single layer and brown for 2–3 minutes per side to create a flavorful crust. Do not fully cook the meat.
- Transfer the browned beef to the slow cooker. Add diced onion, sliced mushrooms, onion powder, Italian seasoning, garlic powder, and minced garlic.
- Pour the beef broth over the ingredients and gently stir to combine.
- Cover the crockpot and cook on low heat for 6 to 7 hours until the beef becomes very tender.
- Once cooked, strain the liquid from the slow cooker into a saucepan while keeping the beef warm.
- Bring the cooking liquid to a gentle simmer. In a small bowl, whisk the cornstarch and water to create a smooth slurry.
- Slowly pour the slurry into the simmering liquid while whisking continuously. Cook for several minutes until the gravy thickens and coats the back of a spoon.
- Pour the thickened gravy back over the beef in the slow cooker and stir gently. Serve warm with mashed potatoes, rice, or egg noodles.
Notes
Searing the beef before slow cooking adds deeper flavor to the final gravy, but the step can be skipped if you are short on time. If the gravy becomes too thick, add a small splash of warm beef broth and stir until the desired consistency is reached. For a richer flavor, chuck roast can be substituted for the sirloin tip roast.
