Rainbow Cake

It’s a colourful dream come true! Paint your palette with pure perfection in the form of a four-layered, fantastically flavoursome vanilla rainbow cake.

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Layers upon layers of vibrant sponge are slathered with clouds of fluffy buttercream and scrummy white chocolate shavings. Don’t worry; your unsuspecting, vibrant-loving friend won’t suspect a thing; they’ll go about their party thinking you’ve got them a delicious yet seemingly BORING coloured cake (no offence to all our monochrome cakes, we still love you). They’ll be over the rainbow when they cut into this beauty and a spectrum of bright hues shine out! Along with a rainbow topper for decoration, this cake will leave your special someone feeling like they’ve stumbled across a pot of gold with a friend like you!

And fear not, whether you're nestled in Norfolk or lounging in Lands End, we've got your delivery covered with our express pigeon post. Just kidding – our couriers might not have wings, but they sure get to you quickly. 

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Packaging

  • Check mark Recyclable packaging
  • Check mark Secure outer box
  • Check mark Bio-degradable film
  • Check mark UK wide delivery available
  • Check mark Create the perfect gift with personalisation extras
  • Check mark Cutting guide included for the perfect portion size

Storage & Care

  • Check mark Allow the cake to come to room temperature before eating, the butter cream shouldn't be hard!
  • Check mark Once opened, store at room temperature in an air tight container.
  • Check mark Leftovers? Occasion not for a few days? Keep wrapped and store in the freezer for up to 6 months.
  • Check mark Use our included cutting guide for the generous portion size
  • Check mark Keep uncovered as it will dry out
  • Check mark Eat the cake straight out of the fridge or freezer - the cakes needs to be up to room temperature.
  • Check mark Leave cakes in direct sunlight as the butter icing may melt.
  • Check mark Leave unattended near kids, as the temptation will be too much!

Ingredients & allergens

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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 kitchen which handles eggs, nuts, milk, soya & sulphites.

Reviews

  • This cake was perfect for the occasion and everyone enjoyed it. Thank you.
    Medium Rainbow Cake
    Lynsey R -
  • Bit smaller than expected, but very tasty, lovely soft sponge with just right amount of filling. Went down well for special birthday!!
    Medium Rainbow Cake
    Shelley B -
  • Rainbow cake very delicious moist sponge very fresh and with rainbow topping makes it look fabulous. Loads of white Choclate all over in buttercream
    Medium Rainbow Cake
    ellie p -
  • Loved it
    Medium Rainbow Cake
    Mary T -
  • Brilliant cake for our son’s first birthday, super simple on the outside (which we wanted so we could add our own decorations) but with a surprise rainbow filling which our 2 year old niece and nephew loved! Cake is very sweet but tasty and everyone loved it. Delivery was super quick too the cake arrived in perfect condition. We needed it to be delivered during that awkward period between Christmas and new year and Sponge was one of the few places that could provide that - free of charge as well. First time ordering but cannot fault them, have already recommended to family.
    Medium Rainbow Cake
    Lisa H -
  • Bought it for my friend’s 50th and went down very well. Loved the rainbow colours. Great cake. very sweet, but everyone ate it!
    Medium Rainbow Cake
    Fiona W -
  • The birthday cake we ordered was not only absolutely delicious but also beautifully made! My mum was so pleased with it. Everyone loved it, and it added so much joy to our celebration. The delivery was right on time and the cake arrived in perfect condition. We highly recommend this cake – it was a fantastic treat, and we’ll definitely be ordering again. Thank you!
    Medium Rainbow Cake
    Connie C -
  • It tasted as good as it looked but I would have preferred it without the chocolate shards and just the fantastic buttercream
    Medium Rainbow Cake
    Michele P -
  • This was a truly stunning cake! There were 4 layers - red, blue, yellow and green - all with a beautiful vanilla buttercream between each layer and topped off with vanilla buttercream and white chocolate that tasted just like Milkybars! My partner loved it as did my Mum! We're looking forward to next year for another instalment.
    Medium Rainbow Cake
    Tracey S -
  • the Rainbow cake was the first i had and it was delicious. The only thing i didn't know was how sweet white chocolate can be
    Medium Rainbow Cake
    Kulvinder K -
  • Very nice and our granddaughter was both surprised and happy with her birthday cake.
    Medium Rainbow Cake
    C H -
  • Yummy
    Medium Rainbow Cake
    Shama S -
  • The cake was really well presented and was exactly as shown in the pictures. My daughter thought i had home made it ... i was tempted to take the glory !
    Medium Rainbow Cake
    Kathleen R -
  • Really super service, fast delivery. Arrived exactly as described and tasted delicious, lasting a good few days. Will be back!
    Medium Rainbow Cake
    Christopher M -
  • Absolutely loved it perfect size for 10 people do soft and very tasty!
    Medium Rainbow Cake
    Sarah C -
  • Very moist - delicious - maybe a little sweet - you need a sweet tooth for this one
    Medium Rainbow Cake
    Nigel W -
  • Great cake great price well worth the money
    Medium Rainbow Cake
    Michelle K -
  • Would buy again! X
    Medium Rainbow Cake
    Caroline C -
  • Delicious
    Medium Rainbow Cake
    Egon M -
  • So happy I found this site I will definitely be ordering in the future!
    Medium Rainbow Cake
    Su-Yen F -
See all reviews

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More information

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. If you're looking for a delicious rainbow cake to buy online‚ order one from Sponge!

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 rainbow cake delivery date and make your payment. Simple!

You can get one of our yummy Rainbow Birthday Cakes delivered anywhere in the UK! We deliver all over the country, including; London, Birmingham, Norwich, Manchester, Newcastle, Glasgow, Liverpool, Nottingham and 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.