How To Make Princess Castle Birthday Cake | Homemade Recipes & Ideas

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If you are already an advanced baker, you may want to challenge yourself with something that is quite complicated yet worthy of every single effort you put into it just like making this Princess castle birthday cake. First of all, almost everyone, even a novice baker can recreate a princess cake which never fails to light up every little girl’s eyes – but why settle there when you can graduate to a much more intricate baking masterpiece and see the look of amazement in those girls’ eyes? Present them with a princess birthday cake along with the magnificent yet completely edible princess castle cake!


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Muster strength; Gather all the things you need

The whole process may take quite some time, which is why we strongly advise you to bake your cake a day prior and store it in the fridge. That way you can just focus on decorating it the next day. This is also a good step to do to ensure minimal crumbs during the initial crumb coating. A good thing we are not dealing with too much buttercream in this process of decorating princess castle birthday cake, and instead relying on sugar paste. You may use your basic cake recipe, just make sure to make 3 layers of 9” cake, 3 layers of 6” cake, 6 layers of 3” cake.

Using your basic buttercream frosting recipe, frost the 9” cake, 6” cake, and then two 3” cake – these 3” cakes are going to be the towers of your castle so make sure to stack them until they reach the same height. Let them set in the fridge while you prepare your sugar paste.

How to make a tasty sugar paste for your Princess Castle Birthday Cake

Many people do not like sugar paste or fondant, especially the store-bought ones, which is why we encourage you to make your own. It’s simple and definitely tastes better. This recipe yields about 1,5 kg of sugar paste – enough to decorate your castle!

  • Sift 900gr icing sugar into your mixing bowl, set 2 cups of it aside for later use.
  • Heat 100gr white margarine until melted and set aside
  • Heat 15ml gelatin powder with 2 tablespoons water, then stir in the melted margarine. Stir in 1 tablespoon glycerin and 3 oz of light corn syrup, add a few drops of vanilla extract and pink (or another color) food coloring. Mix.
  • Pour the gelatin mixture into the sugar, mix it until it turns into a soft dough. Knead the soft dough and adding sugar (from the 2 cups you saved before) until it forms a smooth and firm sugar paste.

Time to assemble the castle!

princess castle birthday cake

oll out a bit of the sugar paste into a thin sheet, roll it over your frosted cake, cover it and apply a bit pressure to ensure no air bubbles. Once done, score the sugar paste with the dull side of the knife until it looks like lines of bricks. Repeat with the other layers. Put the 6” cake on top of the 9” cake, and then the 3” cake on the 6” cake. To create the top of towers, you may roll the leftover sugar paste into the desired shape and place atop each of the 3” cake. Voila! You have your beautiful Princess castle birthday cake!