Fondant is a marshmallow-based dough that often is used to cover the top of cakes to give the cakes a smooth, professional appearance. Fondant is workable and can be formed into many shapes and patterns. A fondant rocket cake will please any child interested in rockets, or someone in the aeronautics industry. There are no special tools or materials necessary to make a fondant rocket cake.
Make a cake according to package directions and bake it in a 9 by 13 inch pan. Allow the cake to cool completely. Turn the cake over on a large tray. Cut the cake into a basic rocket ship shape tapered to a point at one end. Place the two top corner triangles against the bottom of the rocket ship shape for the rocket's tail and exhaust.
Cover the cake in butter cream icing.
Roll out the fondant on a smooth surface to a thickness of about ¼ of an inch. Make sure there is enough fondant to cover the cake on all sides. Drape the fondant over the cake.
Use your hands and a plastic spatula to push the fondant against the cake outline. Cut off any excess fondant with a knife.
Roll out the red and blue fondant to a thickness of ¼ of an inch. Use cookie cutters to cut out stars or other shapes that you want to design the rocket. You also can use a sharp knife to cut out the shapes. Place a small dab of icing on the back of each fondant piece and press it in place on the cake. Cut out the letters "USA" or the name of the cake recipient and glue them to the cake with frosting.
Push five or six candles into the bottom of the rocket. When it comes time to serve the cake, light the candles to make it look as if the cake were lifting off from the ground.