A New 3-Ingredient Milkshake Recipe

In the late 1930s, several newspaper articles show that the term "frosted" was used to refer to milkshakes made with ice cream. In 1937, the Denton Journal in Maryland stated that "For a 'frosted' shake, add a dash of your favorite ice cream." In 1939, the Mansfield News in Ohio stated that "A frosted beverage, in the vernacular, is something good to which ice cream has been added. Example par excellence is frosted coffee—that hot, tasty beverage made chilly with ice and frosty with ice cream."