Place your chuck roast in a crock pot and place the stick of butter on top, season with garlic salt, pepper and parsley. Add in the soy sauce, Worcestershire sauce and beef broth. Add in the mushrooms next. Cook on low 8 hours or high 5 hours.
When your chuck is done, shred it and then add in the soup, cream cheese and sour cream. I also like to add in a few more dashes of soy sauce, give a good stir and cook on high 30 minutes.
Ger your egg noodles cooked while the sauce is heating up
Serve the sauce over top of the noodles.Enjoy!