Recipes that are meant to be cooked using other methods need to be modified for slow cookers. The amount of liquid used may need to be adjusted, as there is some evaporation that occurs, but there should be enough liquid to cover the food. Many slow cooker recipes are designed for convenience and only use a few ingredients. The long, moist cooking method is ideal for tough and cheap cuts of meat, such as pork shoulder, beef chuck and brisket. For many slow-cooked dishes, these cuts of meat produce better results than more expensive cuts. They are also often used when no one is available to watch the food, as the cook can add the ingredients to the pot and come back several hours later to a finished meal.