Place the chuck roast in a crockpot
Add the ranch seasoning packet (about ½ to ¾ of the packet)
Add the au jus mix packet (use the full packet)
Place the ½ stick of butter on top of the roast
Add about 6 pepperoncini peppers and drizzle some of the pepperoncini juice over the roast
Cover and cook on low for 6-8 hours until the roast is tender and shreds easily