The butter adds a rich, buttery flavor that makes this dish ultra decadent. That said, many people either leave it out or cut the amount in half with no issues. If you’re worried it’ll be too rich, feel free to skip it! I don’t recommend using margarine as a substitute.
You can swap the chuck roast for a beef bottom round or rump roast if you prefer. Want to try something different? Pork roast or even chicken breasts or thighs work great, too—just use pork gravy or chicken gravy mix instead.
Toss in cubed potatoes and carrots to make it a full meal in one pot.
If you have the time, browning the meat before adding it to the crockpot adds extra depth and flavor—but it’s totally optional.
Not a fan of pepperoncini peppers? You can use jarred pickled red onions or baby dill pickles instead—just don’t forget to pour in some of their juice for that tangy kick!