Fondant fancies are light square sponges covered in buttercream, then encased in and decorated with fondant. The fluffy sponge is made with almond paste, lemon zest and French meringue.  The key to perfect fondant fancies? They must be perfectly square, perfectly identical and have a smooth, flawless finish.  Fondant fancies were the technical challenge for dessert week on The Great Canadian Baking Show.