Put chuck roast in crock pot, Sprinkle with Hidden Valley ranch dressing, add McCormick Au Jus mix, a stick of butter, 5 pepperoncini peppers. DO NOT ADD WATER. Cook on low for 7-8 hrs - I have this in the crock pot right now! It's GREAT! I did a 5 lb roast, 2 ranch packs, 1 au jus, 1 brown gravy, & 1 mushroom gravy & 1 stick unsalted butter. Low 7 hrs and its READY!