This tutorial demonstrates how to bake, slice, fill and frost cakes in the shape of hemispheres and full spheres without any carving. With this simple shape, you can build all kinds of 3D sculpted cakes including soccer balls, basketballs, planets, faces and globes.
Sphere and Hemisphere Cake Designs
Here are some examples of custom 3D cakes made from the simple half sphere shape including an owl cake, a fish cake, a beach ball cake.
Below is an example of two 3/4 sphere cakes presented side-by-side to make a booby cake
. Follow this link to read my Breast Wishes Cake Tutorial
Below is an example of a princess cake made from a combination of a half sphere and a traditional cylinder shape cake. Follow this link to watch my 5 Part Princess Doll Cake Video Tutorial.
How to Make a Half Sphere Cake
The easiest way to bake a half sphere cake is in a bowl. A regular stainless steel prep bowl works but you can also use an 8” hemisphere pan
So that the bowl sits level throughout the baking process, I nest it within a regular round cake pan.
1. Bake the Cake in a Bowl
Bake the cake upside down in a bowl
. No pan liner is needed; just be sure to grease & flour the bowl thoroughly before pouring in the batter. I also use heating core for this shape to prevent the outsides of the cake from browning too much, and I grease & flour that inside and out too.
2. Fill the Cake in the Bowl
Once the cake is baked, cooled, and sliced into layers
(follow this link to watch my cake slicing video
), line the same bowl with plastic wrap and begin assembling the cake in the bowl using my cake filling method
, which involves alternating layers of cake with layers of filling right inside the bowl. In this case, the filling is simply vanilla buttercream frosting
. Here is the link to 11 cake filling recipes
that can be used with this method.
Once the cake is filled
to the top of the bowl, cover it with the remaining plastic wrap and put it in the freezer for 30 minutes or until the cake is cold enough to release from the pan.
3. Pop the Cake Out of the Bowl
De-panning the cake should be relatively easy in this case since the bowl was lined with plastic wrap. With a heat gun, torch, hot water bath or blow-dryer, warm the outside of the pan just a little bit then tug on the plastic. The cake ought to release itself. To learn more, follow this link for my tutorial on filling and depanning cakes in the baking pan
How to Frost a Half Sphere Cake
Frosting rounded shapes is not as complicated as one would think. In my opinion, it’s easier than frosting traditional square and cylinder shapes because because there are no corners or edges involved. You can use the palm of your hand to do this job. Or you can use a couple of tools.
METHOD #1 Half Sphere Cake Frosting with Tools
Using a small offset spatula, crumb coat the cake with buttercream frosting. Transfer the cake onto a working platform of some sort (a flat platter, a larger cardboard circle, an old cake board, or in this case, a pizza pan) to support cake while it’s being moved in and out of the fridge to be frosted. Chill the cake in the refrigerator until the buttercream is cold and no longer sticky.
If you intend for your finish to be made of buttercream, Add a second coat i
n the same manner and chill the cake again until the buttercream is cold and hard (15 minutes or more).
While spinning the cake on a turntable
, scrape the rough edges off the cake with the flat end of a plastic bowl scraper
. This only works if the cake is well-chilled so that the buttercream frosting
Buff spatula marks away
by rubbing the surface of the cake with a piece of clean paper towel while spinning the turntable
Chill the cake
again before running an offset spatula around the bottom to release it from its working platform. Then, transfer the cake to a serving platter before decorating it.
METHOD #2 Half Sphere Cake Frosting with Your Hand
Sometimes, the best tool for the job is your hand. An open palm has just the right curve for frosting rounded and contoured cakes. For the smoothest possible finish, wear a safety glove.
How to Make a Full Sphere Cake
To make a full sphere cake, bake two half spheres. Level off the curve on one of the hemispheres (see photo below) and fit it with a piece of cardboard to serve as the cake’s bottom. This will help prevent the cake from rolling.
Proceed with the top half as per a half sphere cake.
If the diameter of the spheres are greater than 7″ in diameter, add wooden dowel supports to the bottom half so it doesn’t get crushed by the weight of the top.
Frost both halves upside down then fit them together and smooth over the seam.
In the above clip, I’m decorating a sphere cake on a turntable using a parchment paper piping cone filled with chocolate buttercream frosting.
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