Pot roast is a cut of beef that the cook browns in hot fat with aromatic vegetables, and then simmers in liquid until the meat is fork-tender. Sometimes other vegetables, like potatoes, carrots and mushrooms, go into the pot near the end of the cooking time. Some of the world’s most beloved dishes, including the brisket that Jewish cooks traditionally serve during Hanukkah and the German specialty sauerbraten, are pot roasts.
A good pot roast makes a delicious meal, but it's not a dish you can put on the table in 30 minutes. More than likely, you should expect that a 5-lb. pot roast will need at least four hours, start to finish, to cook properly. You can’t rush a pot roast and expect to end up with meltingly tender meat and a silky sauce.