Home > Cakes, Dessert > Rainbow Cake

Rainbow Cake

I know, I know, rainbow cakes are ‘so yesterday’…

rainbow cake 4

But truthfully, even at its rage, where every baker, every cake shops, and every blog was speckled with at least one ‘rainbow’ item. I wasn’t tempted at the very least to make one. Mostly because of the amount of work involved. And maybe because of the amount of food coloring that went into it.

rainbow cake 7

Even now, as i sit typing this, the one slice of cake that i cut for the photos remain untouched.

rainbow cake 3 copy

So why make rainbow cake you ask?

Well you see, a close relative of mine has just opened up a cafe. She wanted rainbow cake on the menu and I was to experiment with a few recipes and decorating options.

rainbow cake

The cake had to be pretty enough to sit on her display chiller. So I decided to pipe rainbow roses around and on the cake.

rainbow cake 1

It’s a lot of work, a lot of piping bags, and a lot of bowls. But i came up with a good solution on how to minimize them. First, I tinted a good amount of buttercream YELLOW. I took my first pipping bag, and piped yellow roses on where it should be. Then i divided ALL yellow buttercream into two. Onto one bowl of my yellow buttercream, and added a few drops of red to make ORANGE. In a way, you can say that i am recycling my yellow buttercream to make orange. And when i am done with my orange roses, i added even more red coloring to make my RED buttercream.

To the second batch of yellow butter, I added drops of blue to make GREEN buttercream. Leftover green buttercream were added with more blue coloring to make BLUE buttercream. And when i am done, I took leftover RED buttercream, mix with BLUE buttercream and my final color, which is PURPLE buttercream.
Which pretty much means that instead of ending up with all 6 colors of buttercream, I was left with only leftover purple buttercream.

Geez, I hope i dont confuse you.

rainbow cake 8

Whatever the case, I hope my relative’s pastry chef has the patience of a Saint. Because if making this rainbow cake daily was one of the job descriptions, I would tender my resignation.

Rainbow Cake Recipe:

Taken from NCC Rainbows Week
by Hera
16 egg yolks
8 egg whites
200 gram sugar
160 gram AP flour
20Β  gr milk powder
20 gr cornflour
200 gr butter,melted

Red, Yellow, Orange, Blue, Green, Purple colorings

How To:
1) Beat eggs and sugar till ribbon stage
2) Sift ingredients B into a bowl. Slowly fold ingredients B onto the whisked eggs.
3) Fold in the melted butter.
4) Divide batter into 6, and add colorings into each one of them.

5) Pour each of the colored batter onto a tin measuring 20 cm in diameter.
7) Bake for 18-20 minute @ 175 Β°CΒ  or till cakes are fully cooked (You can do a skewer test here)
8) When the cake layers are cool, layer each cake with the cream cheese frosting

Frosting Cream Cheese:
350 ml Whipping cream

250 gr Cream Cheese
110 gr icing75 gr butter unsalted

Whip the whipping cream, set aside in the refrigerator.
Beat Cream Cheese, butter n sugar
Add Whipped cream into the cream cheese mixture and beat till well mixed.

For the buttercream frosting, i used Martha Stewart’s Swiss meringue buttercream.

Recipe can be found here

  1. June 23, 2013 at 6:41 am

    Your rainbow cake creamed with rainbow colours definitely look awesome and would look so pretty sitting in the showcase of a cafe πŸ™‚ This will entice customers to go in for cake! :):)

    Indeed, it’s very time consuming to bake such a cake which needs loads and loads of patience. Kudos!

  2. Eryani
    June 23, 2013 at 8:54 am

    Wonderful roses and excellent taste definitely

  3. June 23, 2013 at 9:43 am

    OMG, this is so beautiful!! I would buy one!!

  4. huntfortheverybest
    June 23, 2013 at 9:16 pm

    your cake is so beautiful!

  5. June 24, 2013 at 12:26 am

    I just tried it recently too! totally lots of work haha! What tip do u use for piping the roses?:)

  6. June 24, 2013 at 1:56 am

    omg amazing and that is such a smart idea! πŸ™‚

  7. June 24, 2013 at 3:27 am

    Rainbow cakes may be “so yesterday,” but I would love to have this one today! This would make a stunning display. πŸ™‚

  8. June 24, 2013 at 3:43 am

    Wow! What a pretty cake. And that was so clever of you to tint the yellow buttercream. Love the idea!

  9. June 24, 2013 at 8:19 am

    the yellow buttercream idea is fantastic! I hate washing up and don’t really like the idea of colouring so I’ve never tried rainbow cakes before although if I do, I’m definitely using your method!

  10. June 24, 2013 at 9:37 am

    Brilliant idea!! This cake is very laborious to be on sale in a cafe.

  11. June 24, 2013 at 1:33 pm

    Ha ha… If I was to make this cake everyday I would also tender my resignation! The cake looks like perfection! But as you said even a thought of eating so much of food color would kill my appetite even for something so beautiful looking!

    Kudos to you for having a patience to create this beauty! πŸ™‚

  12. June 26, 2013 at 5:38 am

    Reblogged this on The Chro(NIC)les of Yaw.

  13. June 29, 2013 at 1:47 am

    Brilliant cake! Amazing decorating skill. Love the way that you divided the buttercream to save waste…. very, very smart πŸ™‚

  14. emisformaker
    July 2, 2013 at 3:56 am

    That cake is gorgeous, and you have the patience of a saint to make it even one time. At least you got a post out of it, plus the jealousy of the internet.

  15. Melody
    July 26, 2013 at 11:17 am

    rainbow cakes are still loved by all young and old! Well done – it looks beautiful!

  16. Vanessa
    August 19, 2013 at 4:05 pm

    Can you tell me which tip you used for the roses?

    • crustabakes
      August 22, 2013 at 12:46 pm

      not too sure about that. my piping tips are all unlabelled1

  17. Mary
    September 11, 2013 at 11:12 am

    I love this cake OMG<3
    Wich tip did u use for icing ? Reply ASAP please. I gota make it on the weekend πŸ™‚

  18. Ireland
    October 2, 2013 at 4:19 pm

    I just love this cake. I love the way you piped the roses in rainbow as well as the inside of the the cake. It is sooooooooooooooo beautiful! I wish I could pipe like that. I am planning on making the rainbow cake very soon. What tip and size did you use to make roses?

    • crustabakes
      October 6, 2013 at 11:01 am

      I have no idea what tip it was! my tips all came unlabelled!

    • Ruby McNulty
      November 24, 2013 at 7:52 am

      Oh my god that cake is making me bloody hungry by ruby(9 years old) :0)

  19. December 7, 2013 at 3:53 pm

    oh my god, those are definitely manufactured rose candies.. that should be a helllotamoney… hey no it isn’t, it’s cut!! It’s cream!!! it’s done by hand!!! lol I think your decoration skills are so amazing. I couldn’t even believe my eyes

  20. robin cheok
    December 29, 2013 at 4:21 pm

    taste wise, can you add strawberry flavouring to the red cake, orange flavouring to the orange cake, lemon to the yellow, apple or Kiwi to the green dough, mint to the blue and yam or grape to the purple? If not, do people buy this rainbow cake and eat it a second time?

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