Whipped cream, also known as Chantilly cream or crème Chantilly, is a high-fat dairy cream that has been aerated by whisking until it becomes light, fluffy, and capable of holding its shape. It is commonly sweetened with white sugar and sometimes flavored with vanilla. The name Chantilly is first connected with whipped cream in the mid-18th century, around the time that the Baronne d'Oberkirch praised the "cream" served at a lunch at the Hameau de Chantilly—but did not say what exactly it was, or call it Chantilly cream. The name Chantilly was probably used because the château had become a symbol of refined food; the word Chantilly by itself has since become a culinary shorthand for whipped cream.

Source: Wikipedia