Most often this variety of soup is made as a creamy soup with a milk or soy base. Carrots are roasted or cooked slowly and pureed into a creamy texture. Then, additional ingredients may be added such as onions and potatoes to enhance the flavor of the soup. Carrot Soup is a type of soup that can be used to blend with other foods such as stews, soups or sauces in order to add a distinctive but mild taste of carrots.