Slice onions and rinse vegetables. Add carrots, potatoes and onion into the bottom of slow cooker. Toss to mix.
Place the chuck roast on top of the vegetables. Pour broth on top. Season meat with garlic, salt, pepper, and Italian seasoning (Add your preferred flavor enhancer at this time: wine, balsamic or Worcestershire sauce)
Turn the slow cooker to low heat and cook for about 8-10 hours or until meat falls apart easily and the carrots and potatoes are soft. ( I do not recommend cooking on high) **cook time can still vary or take longer sometimes, cook until it falls apart! You can wait to add the carrots and potatoes until about 2 hours in if you want them a bit firmer.
When meat is ready, you can stir to allow the meat to fall apart into chunks. Transfer to a serving dish or serve straight from the slow cooker. To thicken the juices , whisk together water and corn starch and slowly pour in the crock pot and stir to combine about 30 minutes before serving.
