01 -
If desired, sear the ribeye steaks in a hot skillet with a little oil for 1–2 minutes per side to add extra flavor.
02 -
Place the steaks in the bottom of the slow cooker in a single layer if possible, allowing slight overlap if needed.
03 -
Sprinkle the ranch seasoning and au jus mix evenly over the steaks. Scatter the pepperoncini peppers on top and pour in the pepperoncini juice if using.
04 -
Place slices of unsalted butter evenly over the meat.
05 -
Cover and cook on low for 5 to 7 hours or on high for 3 to 4 hours, until the steaks are fork-tender.
06 -
Carefully remove the steaks from the slow cooker and spoon some of the juices and peppers over the top. Serve hot over mashed potatoes, steamed rice, or egg noodles, with optional garnish of fresh parsley.