This Slow Cooker Beef Manhattan recipe transforms a simple chuck roast into a fork-tender, savory delight. Slow-cooked in a rich gravy and served over creamy mashed potatoes, it's the ultimate comfort food classic that's surprisingly easy to make. Perfect for a cozy night in or a family gathering.
For extra tender beef, cook on low for the longer cooking time. If the gravy is too thin, mix 1 tbsp of cornstarch with 2 tbsp of cold water and add to the slow cooker. Cook on high for 10-15 minutes or until thickened. Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently on the stovetop or in the microwave. Add vegetables such as carrots, celery, or potatoes to the slow cooker for a heartier dish. A medium-bodied red wine like Cabernet Sauvignon or Merlot pairs well with this dish.