Chuck roast is best for any slow cooker recipe that has a long cooking time. If you don’t want to use a chuck roast or can’t find it, then I recommend using another fatty cut of beef.u003cbr/u003eu003cbr/u003eThe more marbling, the better.u003cbr/u003eu003cbr/u003eRound and brisket are two other cuts of beef that work well in pot roast recipes. But if you can use chuck roast, then I recommend that.