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 (most commonly lemon) 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...

Source: Wikipedia