Tender and juicy, this Slow Cooker Balsamic Beef is absolutely incredible! Add everything to your crockpot in the morning, then in the evening, you'll have sweet and savory, tangy balsamic beef ready for dinner.
Add the salt, pepper, onion powder, and Italian seasonings to a small bowl and whisk to combine. Sprinkle the rub on the roast and rub it generously onto the roast.
In a medium bowl, stir together the balsamic vinegar, brown sugar, Worcestershire sauce, beef broth, and garlic.
Pour the broth mixture into the slow cooker with the roast.
Cover and cook on low for 8-10 hours.
In a small bowl, whisk together the cornstarch and water to make a paste. Stir it into the liquid inside the slow cooker.
Continue cooking for an additional 30-60 minutes. The cornstarch mixture will help thicken the sauce.