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Rainbow Cake

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A four layered vibrant vanilla rainbow cake with sweet vanilla buttercream and covered in a cloud of white chocolate shavings. Comes with a cute rainbow topper for decoration.

Ingredients & Allergens

Rainbow Cake

Our colourful new rainbow cake is made up of four layers of light and fluffy vanilla sponge with three layers of deliciously sweet vanilla buttercream sandwiched between. Vanilla buttercream also covers the entire cake and it is then coated very generously in a cloud of white chocolate flakes. The perfect rainbow birthday cake for any age, or a great cake to cheer up a loved one. Due to the number of layers, buttercream and coating it is very generous and will easily feed more than 8 people! Comes with a rainbow topper for decoration.

Rainbow Slice
White Chocolate Top

What's in the mix?

Made from free range eggs and natural vanilla flavouring to create light and fluffy sponge layers. Natural vanilla is infused into the buttercream and it is then covered in white chocolate shavings. A deliciously sweet cake.

Rainbow Sponge inside

Surprise Centre

Our Rainbow Cake is sure to bring a smile to everyones face as you cut inside to reveal four vibrant layers of colourful sponge cake!

How do I look?

Our Rainbow Cake is perfect for birthdays, christenings, baby showers or even just to cheer someone up! Filled with four vibrant layers of fluffy vanilla sponge and held together with deliciously sweet vanilla buttercream. It is then coated in more vanilla buttercream and covered with a cloud of white chocolate shavings. Comes with a pretty rainbow topper to decorate (not edible). STORAGE - Please store me in an air-tight container in a cosy spot - I don't like being kept in the fridge. Can be frozen for up to 6 months.

How do I arrive?

Our sponge cakes are packaged in secure and robust packaging. The inner box is wrapped around the cake to securely hold it in place so the sides and top do not get damaged in transit. The box also includes a handy cutting guide! It is then put in a strong cardboard outer box for extra protection so it will arrive to you safely.

Line drawing of a cake
Product Serves Pack Weight Cake Diameter Cake Depth Ambient Shelf Life
Rainbow Cake (No Rainbow Topper) 8 1kg 17.00cm 8.00cm 6 days
Rainbow Cake 8 1kg 17.00cm 8.00cm 6 days


  • Victoria I - 22/09/2020
    Rainbow Cake (No Rainbow Topper)
    We purchased this cake for a friends 17th birthday- it was beautifully presented, arrived on time and tasted absolutely gorgeous- thank you again!
  • Adalyn G - 22/09/2020
    Rainbow Cake (No Rainbow Topper)
    Will definitely order again next time. This is already my 2nd purchase. Considering that I’m not living in UK, I still felt like the service that Sponge Cake provided is absolutely amazing! I have ordered for my Finance’s birthday in July and his sister’s birthday this Sep as well. They were surprised and both of them loved the cake! Can’t wait to try more! 🙏💯💜
  • Heather L - 21/09/2020
    Rainbow Cake (No Rainbow Topper)
    I ordered this cake for my daughter's 3rd birthday and it was enjoyed by all the family. Even more delicious than I expected. Arrived very well packaged and in perfect condition. Will be ordering more cakes! Thank you.
  • June K - 20/09/2020
    Rainbow Cake (No Rainbow Topper)
    The rainbow cake was for my fiance's birthday ,and he loved it,so did l !!
  • Gill R - 20/09/2020
    Rainbow Cake (No Rainbow Topper)
    We love sponge cakes but this one was too sweet which meant it wasn’t as enjoyable. This was a shame as it was more expensive too.
  • Lydia P - 15/09/2020
    Rainbow Cake
    The cake was again of a high quality. Packaging was great again meaning the cake was secure and arrived safely. Don’t change anything about the recipe, the buttercream and the cake mixture is perfect. Everyone who tries the cake loves it, and said they will order one themselves. The white chocolate flaking off the outside can become a bit messy, but we just make sure we sit the cake on a big tray.
  • Tracey G - 15/09/2020
    Rainbow Cake (No Rainbow Topper)
    Lovey cake, bought for my daughters birthday and added my own cake topper. Kids love a rainbow centre! Made sure there was plenty left for adults too
  • Richard C - 15/09/2020
    Rainbow Cake (No Rainbow Topper)
    We found this cake a bit sweet. This was due to the icing, maybe a little too much of it and it had that slight synthetic taste (the icing). The sponge it’s self was slightly dry but the balance was nice once we cut off the top and side icing. We are not the sort to be overly fussy about sweet cakes, I love sugar and always love your cakes, this one was just a bit overly sweet for us. Thanks.
  • Gill B - 03/09/2020
    Rainbow Cake
    My friend recommended your cakes to me having been sent one herself for her birthday. My daughter in law (to be) was thrilled with her cake which was delicious and a chocoholics dream! It arrived on time, beautifully packaged and great quality. She was still eating the cake a week later and it retained its freshness and taste. Will definitely use your cake service again. Thank you.
  • Gill M - 02/09/2020
    Rainbow Cake
    Loved this cake. Tasted really good and looked spectacular inside as well as outside. Would recommend.
  • Sallie W - 02/09/2020
    Rainbow Cake
    The cake itself was just right, not dry or too moist, the icing was lovely, just sweet enough and the white chocolate shavings added the perfect finish
  • Nicole C - 02/09/2020
    Rainbow Cake
    The rainbow cake is both gorgeous and delicious! A smash hit for my son's first birthday. Not ashamed to admit I had seconds!
  • Lydia P - 01/09/2020
    Rainbow Cake
    I literally cannot praise this enough. So so glad I ordered this cake!! I have received and sent the “Cake Cards“ a couple of times so thought I would try the rainbow cake for my partners birthday (I also really wanted to try this I won’t lie!) It tastes amazing and looks great. Ordering another one today for my sisters birthday. Thank you Sponge!
  • David G - 01/09/2020
    Rainbow Cake
    Cake delivered exactly as when I was expecting it. The cake was For my wife’s birthday and it was amazing. Exactly what we wanted, looked beautiful and tasted even better
  • Claire T - 31/08/2020
    Rainbow Cake
    Stunning. My partner loved her surprise birthday cake and it tasted exquisite. I definitely recommend to anyone who wants the PERFECT cake!
  • Carly I - 29/08/2020
    Rainbow Cake
    Very beautiful colours, very soft and absolutely amazing taste. Daughter was amazed by it and said it was the best cake EVER.
  • Debbie M - 28/08/2020
    Rainbow Cake
    My son picked this cake for his birthday and he was so pleased with it, it’s his favourite flavour and he enjoyed more than one slice of it!😝
  • Mark F - 27/08/2020
    Rainbow Cake
    My mum sent me pictures to Australia and they looked just like the website, even when she cut into it it looked awesome. So happy with everything you guys have done to make my mums special day memorable..
  • Marie M - 26/08/2020
    Rainbow Cake
    Really liked the product. Generous portion sizes, colourful and very fresh and moist. Everyone commented on how lovely it was. Struggled with the create a cake option which was a shame bit was able to get this option made gluten free so no real problem.
  • Gina C - 25/08/2020
    Rainbow Cake
    Ordered o a 50th Birthday everyone completely surprised when cake cut. Cake itself tasted beautiful

Have you tried?

Rainbow Cake

Sugar, margarine (palm oil, rapeseed oil, salt, emulsifier E475, flavouring, sunflower oil, colours (curcumin, annatto), eggs, self raising flour (wheat flour, raising agents (sodium bicarbonate, mono calcium phosphate), calcium carbonate, iron, niacin, thiamin), butter (milk), white chocolate (sugar, cocoa butter, milk powder, emulsifier (soya lecithin), vanilla flavour), red, green, orange and blue colouring (E422 glycerol, E1520 Propylene glycol, E551, silicone dioxide, food colour E124, E129, E102, E133, E155, E171, E110) natural vanilla flavouring.

ALLERGENS IN BOLD. Made in a bakery which handles gluten, eggs, nuts, milk, soya & sulphites.

All of our cakes are baked in the same kitchen and although we do all we can to minimise the risk of cross-contamination we cannot 100% guarantee this.

  • Has Gluten containing cereals
    Contains Gluten
  • Contains Milk
    Contains Milk
  • Contains Eggs
    Contains Eggs
  • Contains Soya
    Contains Soya
  • Suitable for Vegetarians
    Suitable for Vegetarians

Did you know?

Our Rainbow Cake is a multi-colour vanilla layer cake with deliciously sweet buttercream sandwiched between layers. It is also covered with a generous layer of vanilla buttercream and white chocolate flakes.

These will make an excellent statement piece for any celebration and are particularly fun for birthdays. The generous size of the cake, with its multiple layers and thick buttercream and coating, means that the cake will easily serve more than 8! There are plenty of personalisation items to add to create an amazing party package too including cards, candles, balloons, drinks and more!

It’s so easy to order our Rainbow cake online - just pop it in your basket, go to the checkout, pop in the delivery details, choose your delivery date and make your payment. Simple!

You can get one of our yummy Rainbow Sponge delivered anywhere in the UK! We deliver all over the country, including; London, Birmingham, Norwich, Manchester, Newcastle, Glasgow, Liverpool, Nottingham and either Northern Ireland! You can even send one to a friend, loved one or family member – we deliver them straight to the door.

We know most of our cakes don’t make it there but it’s good to know you can freeze your Rainbow Sponge for up to 6 months! Either pop it in the freezer whole in its packaging (if you’re saving it for a special occasion) or cut it into slices and put it in airtight containers. When you’re ready for it, take it out of the freezer and leave it in a nice cosy spot for 24 hours – to get it up to room temperature. Then you’ll be able to enjoy your scrumptious cake.

STORAGE - Please store me in an air-tight container in a cosy spot - I don't like being kept in the fridge.