For the buttercream, you do use 750g unsalted butter and 1500g icing sugar, which technically is a little obscene but the amount of servings from this cake is huge so please don’t be a negative Nelly about the sugar content! A rainbow cake is a type of multi-layered cake that uses several colors of frosting, each representing one of the colors in the visible spectrum. TMNT Birthday Cake I use a large metal scraper to decorate the sides of the cake, and a small angled spatula to also help cover the sponges – and its much easier and you are going to get a smoother finish using these as well!

I made the cake a 600g mix, so that it’s super easy to split into two batches. The best way is to weigh 5-6 medium eggs, and get as close to 300g as you can, for example 312g, and then match the butter, sugar and flour to that weight. I love all things cake, we all know this, but a rainbow cake is something else. The absolutely insanely bright colours, the sweet taste, and all things cute take it to a different level entirely! It is just glorious. Rainbow cakes are so much fun! They’re colorful, and beautiful and can be made in a variety of different colors. They’re easy to make and can be decorated in many different ways. Plus, they’re a great way to celebrate birthdays or other special occasions like graduation.And I will also say from the beginning… YES I KNOW THE RAINBOW HAS SEVEN COLOURS. This cake, is only six. When baking this cake, I just find making 6 colours so much easier, and you can see the obvious differences. I am not bothered about the seventh! Rainbow cake ideas for your birthday party. Every birthday deserves a rainbow cake, and this one is no exception! Whether you’re looking for a unique way to celebrate or want to make your next event memorable, these cakes are sure to wow. Oh hellooo most requested recipe OF ALL TIME. I am not even joking, this recipe has been requested over and over again and I am ~finally~ posting it on to my blog! It’s taken a fair old time as I wanted to get it right!

So… I will say from the beginning that this recipe uses lots and lots of ingredients, and it is a humongous cake! Like, its 6 layers of cake, and all the buttercream in-between the layers, and all the decor on top! For the pink drip, I use white chocolate ganache with this pink food colouring added in. Its a super bright colour so you don’t need add too much and it means you get the best coloured drip ever! Finishing touches and tips

Hi, I'm Julie!

I add a little at a time and keep beating it very well to make sure its really white and bright to contrast against the colours of the sponge! Making the buttercream whiter is completely optional of course though. For this cake, I did make probably the biggest one tier cake ever. It’s about 8-9” in height, and uses so many ingredients. Because it is a six layer cake I decided to make it in two batches. So three layers at a time, so therefore you still only need three tins! When it comes to baking a rainbow cake, there are many ways you can go about it. You can use colorful frosting or color the batter with food coloring. You can also use edible markers to draw the colors on the cake and make your patterns. The following is a list of six cake ideas that you can use to make your next birthday party extra special. Just as I have finished the buttercream I carefully press in some rainbow sprinkles to the bottom of the cake for a bit of colour and I just love the design – be warned, sprinkles will fall off at this point so beware! After this, I chill the cake again!

Once my sponges are baked, I leave them to cool completely and freeze them wrapped in clingfilm over night so that they are easier to decorate the next day – but this bit is completely optional of course!! Rainbow cakes are typically made for birthdays, but they are great for any occasion where people want something eye-catching and festive! I then pipe on the leftover buttercream and add on some more rainbow sprinkles and the best cake ever is finished! I am in love with the sponges and how bright and pretty it is – but the key point to make, YOU NEED TO USE GOOD QUALITY COLOURS. Once you have layered each sponge you need to do a crumb coat by using as little buttercream as possible around the edges to seal in the spare crumbs from the sponges! I then chill the cake for a while to firm it up before adding another layer of buttercream on top.Then, you mix it all together like normal, and then split into three bowls. It doesn’t matter which colours you do first, but I did red, orange, and yellowtogether, and then green, blue and purple. Birthdays are a time for celebrating…you, your family members and your friends! But why is it a cause for stress sometimes? It shouldn't be. I still remember my birthday parties as a kid, vividly. I remember the taste of the cakes I had (yum!), the games we played and how I felt. That's the most important part, I felt special and it was my day. I make my buttercream like normal by beating room temperature unsalted butter on its own for several minutes to make it really loose and supple, and then I gradually add in the icing sugar! I make sure to beat this for quite a long time. The cake ideas can be a bit difficult to come up with, especially when it comes to birthday cakes. However, this article will provide you with some creative and fun ideas for your next birthday cake.