Sprinkle the dry Ranch dressing and au jus packets evenly over the top of the roast.
Place the butter and pepperoncini peppers evenly over the top.
Cover with a lid and cook on LOW heat for 8-10 hours (HIGH heat 4-5 hours) or until the meat shreds easily with two forks.
Discard any large fatty pieces, if applicable, before serving.
Serve the shredded meat with juices from the slow cooker, if desired.
Notes
Serve with mashed potatoes (my personal favorite), rice, or noodles. To keep this recipe a low-carb option, try it over mashed cauliflower or with cauliflower rice!
If you like, you can add some of the juice from the pepperoncini peppers for extra flavor.
For an easy all-in-one-meal, you can also add potatoes and carrots to be cooked with the meat.