Geometric Heart Cake Tutorial – Plus 10% off Fest Cake London Moulds

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With Valentines day fast approaching and Mother’s day in a few months, geometric cake hearts have become so popular. They make the perfect little treat and look so pretty in treat boxes. They can also be used as decorations for your cakes. In this weeks video tutorial I am going to be using 2 different sizes of geometric heart moulds to create this love inspired cake.

Geometric Cake Heart Cake tutorial for valentines day

You can watch the full step by step video tutorial here. In the tutorial I show you how to make the cake hearts using the moulds by Fest Cake London, how to cover and prepare your cake and how to attached your hearts. ⇩

The Moulds

To create cake hearts there are so many moulds you can use, and in a tutorial a few months ago I use a silicone heart mould and show you how to make and paint cake hearts. Now if you watched my choco bomb tutorial at Christmas you would have seen me use the 3 part sphere mould from Fest Cake London and I just fell in love with these moulds and since then I have been so excited to share the heart ones with you.

I’m using 2 different sized moulds. The first was a 3 part mould to make the larger of the hearts and a mini heart mould for the smaller ones. I love how quick and easy it is to make the shells with the 3 part moulds. You just pour your candy melts or your tempered chocolate up to the line, push in a flexible heart and add on the back. This means that they create a shell that is the same thickness all over. Now I know you don’t really see inside, but they are also so neat, you even get the geometric shape on the inside. Perfect if you’re making giant ones full of sweets to smash open.

Fest Cake London have also been kind enough to give me a 10% off discount code, for their moulds, for me to share with you. To receive 10% off all you need to do is click this link which will take you to their website. If you add any of the full price BWB mould to your basket it will automatically take off 10%

The great thing is they also have sphere moulds, teddy bear moulds and so many more.

Geometric Cake Heart Cake moulds by fest cake london

Just how neat is the inside of the shell!

Colouring your Cake Hearts

For the cake hearts I used white candy melts from PME (I used a whole 284g bag to make 4 large cake hearts and 13 of the mini half shells) and coloured them with the Colour Mill oil based colours which I got from The Cake Decorating Company. You can buy candy melts pre- coloured but if you’re thinking of colouring your own chocolate or candy melts you will need to use an oil based or powdered colour. Alot of food colour gels are water based, so when you add these the water content can cause the chocolate or candy melts to go hard and lumpy.

making Geometric Cake Hearts cake

Filling my Cake Hearts

For the larger of the hearts which measured around 6cm in height I filled these with vanilla sponge cake that had been mixed with buttercream. If you have ever made cake pops or cake hearts its the same mixture. You could also use chocolate cake, brownies or fill the hearts with sweets. If you are filling them with sweets add 2 of the shells together like I do with the mini ones to hold the sweets inside. I then covered the back in a layer of candy melts to lock in the cake.

I love how the cake looks with the different sized hearts running up the side of the cake, and the turquoise buttercream really makes the cake pop. You can make the cake in any colour to match the theme of your party. I then finished the cake off with a few small heart sprinkles.

I really hope you will find this tutorial useful and enjoy making your own version of this cake or maybe just the cake hearts on their own. Don’t forget to also check out my other cake heart tutorial where I show you how to paint roses and polka dots onto your hearts and also a great way to add sprinkles.

Plus if you haven’t already you can subscribe to my YouTube channel for more Free cake decorating video tutorials.

Tools that I used

I have put a list below showing all the tools that I used throughout this video or if you would like to see all my favourite cake decorating tools just click here:

Regular Cake Heart mould –
Mini Heart mould –
PME candy melts:
Fun Cakes deco melts:
Offset spatula (small):
Colour Mill Rose:
Colour Mill Raspberry:
Piping bags I use:
Jade Colour Splash:
Happy Sprinkles Royal Glitter:
Enter the code HAPPYLYNZ10 on the Happy Sprinkles website to get 10% off their sprinkles

~ Please note that some of links above may be affiliate links. If you click the link and purchase any item through that link, I will receive a small commission from the website but this does NOT add any additional costs to you. Thank you so much for supporting this blog x ~

Plus why not save this tutorial for later and pin it to Pinterest

how to make a Geometric Cake Heart cake

Thank you for reading!

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Hi, I’m Lynsey and welcome to Cakes by Lynz. I LOVE everything cake! Here you will find all my latest cake decorating video tutorials from my YouTube channel, reviews and general cake ramblings!

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