In your slow cooker, whisk together one packet of au jus gravy mix, one packet of ranch seasoning, half a cup of pepperoncini juice, three tablespoons of minced garlic, and a sprinkle of ground black pepper.

Next, stir in two pounds of beef stew meat, ensuring each piece is well-coated with the seasoning mix. Add six to eight whole pepperoncini peppers.

Now, add four tablespoons of cubed salted butter directly on top of the meat and seasoning.

Cover the slow cooker and cook on LOW for seven to eight hours.

Once cooked, spoon the tender beef and warm sauce over creamy mashed potatoes, fluffy rice, or buttered egg noodles.