Can you freeze extra frosting that contains cream cheese? If so, for what length of time?
Cream cheese frosting is not likely to freeze well: it becomes watery and crumbly. The same can be true for a confectioners' sugar buttercream frosting, but you can return it to it's former fluffly glory, according to Melanie Underwood, Institute of Culinary Education chef-instructor and former pastry chef of The Plaza Hotel in New York City. "Be sure to defrost the frosting completely before you re-whip it," says Chef Melanie, "and adjust the texture with just a little milk if needed". She recommends making a Swiss or Italian meringue buttercream for a cake frosting that freezes exceptionally well.