Cake Decorating

Cosmic Space Themed Drip Cake Idea

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Last Updated on 27th January 2022 by Vicki

Purple And Blue Cosmic Themed Space Cake With Black Drip.

Hi all, it’s been another busy week for me making this space themed drip cake for my step dad’s birthday. As soon as I saw Cake Decor’s Galaxy sprinkles back in May, I thought they would be perfect for a cosmic themed cake idea! So I’ve actually been planning this one for a while! My step dad really enjoys astronomy so I knew this would be the perfect cake for him. Buttercream finished cakes are still actually quite new to me as a whole. In the past I’ve mainly worked on sugarpaste finished cakes. So this time, I was very eager to give some new ideas and techniques a go. Plus, I was also super keen to jump onto the cake sprinkle band wagon that everyone is on right now too! I have included a list of items that I used to make this cake at the bottom of the page.

How I Made My Space Themed Drip Cake

This cake consists of three 6 inch round madeira cakes stacked on top of each other. As 6 inch cakes are small, once stacked they make the cake look very tall. But even though they are small, as you have three of them, you still have a lot of cake!! Each cake was sliced in two, resulting in 6 layers. Making sure each cake was level, I then stacked them on top of each other with a layer of buttercream in between. Note, that I used dowels in the lower 3 layers and placed a 6 inch cake board on top of the third layer. I did this for support, so the bottom three layers didn’t get crushed by the top 3, but also for ease of cutting. Once I had finished assembling the cake, I placed it in the fridge for 30 minutes. This gives the buttercream a chance to set so the layers don’t move when crumb coating.

Multiple Coloured Buttercream Effect

The first technique I wanted to try out was the gradual changes in the colour of buttercream as it goes up the cake. I wanted the colours to represent the gradual changes of colour from the sky into outer space. To do this, I firstly crumb coated the cake with the two main colours. Crumb coating seals in all those loose crumbs and gives you a nice base to add your final layer. Once I had crumb coated the cake, I popped in the fridge for 30 minutes so the buttercream could firm up.

crumb coated cake
The crumb coat layer.

Next came the exciting bit!! Firstly, I piped my buttercream around the cake in layers of colour as I went up. Piping helped to get even layers with roughly the same amount of buttercream. I used a tall cake scraper to smooth the buttercream, rotating my turntable as I scraped and removing the excess buttercream off the scraper each time.

I piped the layers of coloured buttercream around the cake first, before using my cake scraper to smooth.

Black Chocolate Ganache Drip

For the black chocolate drip I gently heated 75ml of double cream on the hob until steaming. I then poured the heated cream over 100g of small chopped up pieces of dark chocolate. After leaving it to melt for a few minutes I then stirred the mixture until fully combined. To make it black I added black food colouring gel a bit at a time until I reached my desired colour. I then left the ganache to cool slightly until it was the correct consistency. I applied the ganache to the cake with a teaspoon. Gently going around the edges first allowing it to drip down the cake. It’s a good idea to check your drip consistency at the back of the cake first in case the ganache is too runny and drips too far down. Once I had gone all around the cake I then spooned the remaining ganache on the top.

Rope Border

The last new thing that I was so excited to try out was using my new piping nozzle that I got for my birthday. The Wilton 1M! I was super excited to pipe a rope border effect around the top of the cake with buttercream. After practising a few times on greaseproof paper, I then piped on the cake. I am really pleased with how it turned out and can’t wait to pipe it again on other cakes.

Finishing Touches

The finishing touches to this cake included a layer of sprinkles around the bottom and then using the sprinkles to decorate all the way round with actual constellations! This was a great way to be able to personalise the cake. I included Cancer (my step dad’s star sign), The Big Dipper and Cassiopeia to name a few. I also placed a pool of sprinkles on top inside of the rope boarder. The cake was finished off with a shower of silver edible glitter dust, three large silver painted chocolate stars and a Happy Birthday cake topper. The chocolate stars were by Dr Oetker, you can take a closer look at them here.

So that’s how I decorated this space themed drip cake. I really enjoyed making it, but as anyone who knows me will tell you, I am super critical of my work. So, if I were to make it again I would make it taller. This would allow more room for the constellation design, but also show the lighter shade of blue buttercream around the bottom of the cake that I completely covered with sprinkles!

If you like the idea of making a drip cake I have a few more designs for you to look at in my cake gallery.

Items Used To Make This Cosmic Cake!

Below is a list of items that I used to decorated this cake.

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Purple And Blue Cosmic Themed Space Cake With Black Drip.

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