You will need:
1. Cake - Can use box cake from the grocery store, in this Instructable I made 2 8" round cakes
3. Fondant rolling pin
4. Various cookie cutters
5. Icing - This icing is butter cream from Publix
6. Cake Leveler
7. Pizza Cutter and/or Fondant Cutter
8. Fondant Mat
Step 1: Prep the Cake - Tier 1
Starting with the red frosting I coat the top of the bottom 8" round cake. You can put as much or as little frosting as you like. I like to spread a small portion to cover the exposed cake and then pipe on more frosting for filling.
The easiest way to make a piping bag is to simply fill a zip top bag with frosting and then cut off a corner of the bag. Then you simply squeeze and voila.
Step 2: Prep the Cake - Tier 2
The fully frosted cake does not need to be perfect. The frosting will give when the fondant is placed on top.
NOTE: If you prefer to chill the cake after frosting it but before placing fondant on top, you really should make the frosting perfect because it will become harder when its cold. You do NOT have to chill the cake, I usually don't and it works just fine.
Step 3: Prep the Fondant
Fondant can be expensive. I also make my own fondant from marshmallows. The marshmallow fondant tastes WAY better but it takes time to create it. Many recipes for marshmallow fondant can be found on the web.
Step 4: Cover the Cake
After you lay the fondant on top of the cake you need to smooth out the top of the cake. Do not press very hard because you might squeeze out some of the frosting. After the top is smooth you need to work all the sides so they are flat against the cake. This takes patience but the fondant will give and take to do what you want. Just be carefully not to pull the fondant too hard because it can create holes and tears. It is easiest to start in one spot and work your way around.
Once all the sides are covered you can remove the excess fondant around the bottom edge of the cake. Be carefully not to cut too much and reveal the cake underneath. Some frosting may also squeeze out at this point so have some paper towels ready.
Once all the excess fondant is removed you are ready for decorations.
Step 5: Decorate the Cake
Bottom Edge: For this I simply rolled different colors of fondant into small balls and positioned them around the bottom of the cake. Doing this covers up any mistakes that may have been made along the bottom and it makes the cake look clean.
Cookie Cutters: Cookie Cutters work awesome for fondant!! They come in all shapes and sizes and make the decoration process very quick. I used to cut shapes by hand but then I invested in some nice metal cookie cutters and it saves so much time!
In order to "glue" fondant decorations to the cake you can dab some water on the fondant and this will act as a glue. For instance, when I attached a star to the cake I would smear a very small amount of water on the back of the star and then stick it on the cake. This will insure that nothing will move.
Have fun decorating!!
I have made several fondant cakes over the past year, check them out at Mann Made Cakes on Facebook: http://www.facebook.com/?ref=logo#!/pages/Mann-Made-Cakes/133594456685056