1 (4 pound) beef chuck roast
¼ cup butter
5 pepperoncini peppers
1 (1 ounce) packet ranch dressing mix
1 (1 ounce) packet dry au jus mix
Place roast in a slow cooker. Form a pocket in the top of the roast and place butter, pepperoncini peppers, ranch dressing mix, and au jus mix in the pocket.
Cook on Low for 8 hours.
Substitute beef round or beef brisket for the beef chuck, if desired.