Chiffon pie

A chiffon pie is a type of pie that consists of a special type of airy filling in a crust. The filling is typically produced by folding meringue into a mixture resembling fruit curd that has been thickened with unflavored gelatin to provide a light, airy texture; it is thus distinguished from a cream pie or mousse pie, which achieve lightness by folding in whipped cream rather than meringue. This filling is then put into a pre-baked pie shell of variable composition and chilled. This same technique can also be used with canned pumpkin to produce pumpkin chiffon pie. The preparation of a mock chiffon pie can be simplified by using flavored gelatin mix and artificial whipped cream substitute. The chiffon pie was invented in Los Angeles in 1926 by Monroe Boston Strause, who was known as the Pie King. The original recipe called for beaten egg whites to be folded into a cornstarch-thickened liquid. Strause was dissatisfied with existing cream pies and had been made ill by a cornstarch pudding as a child. Strause claimed it was his mother who compared it to chiffon when she first saw it.

Source: Wikipedia