The weather in the Northern Hemisphere may be getting cooler, but there is still time left to enjoy frozen desserts typical of summer. One of the most traditional warm-weather treats is ice cream -- a frozen mixture of cream, sugar, milk and flavorings. Many people believe the dessert first became popular in the United States after the wives of early presidents served it in the White House. According to the White House Historical Association, Dolley Madison, the wife of President James Madison, served ice cream there for the first time. That was in the early 1800s. But ice cream has changed a lot in the last 200 years. And now, a new style of ice cream that started in Southeast Asia is spreading in the United States: rolled ice cream. This summer, rolled ice cream could be found at street festivals from New York City to Nashville, Tennessee.