Introduction: Rainbow Marzipan Cake

Picture of Rainbow Marzipan Cake

Kids and adults, we both like good looking and tasting cake.
And what could be cooler then a good tasting marzipan cake with an included rainbow?

This is a reciep i came up with about 17 months ago, to my own birthday.
I since then enhanced it, until even i ate it. (i'm usually not into cakes...)

It not only looks really cool and tastes good, it also wont dry out as fast as a normal cake would.
I published the reciepe a year ago on my blog and on my board (in german), and i thought that this has to be on instructables.

Step 1: Ingredients and Tools

Picture of Ingredients and Tools

The ingredients list, usually the most important thing.

I am only used to the metrical system, but for your convenience i used a converting table, to also give you imperial measurements. But maybee you still wanna check that yourself.
I hope Cups are allright? If not, tell me.

If your confused with something, look at the pictures.


375g flour (3 & 3/4 Cups)
250g sugar (1 & 1/2 Cups)
250ml Oil (1/4 quart) dont use oliveoil or any other oil with taste
200g powdered sugar (2 Cups)
200g marzipan (1 Cup )
125ml water (1/10 Quart)
5 eggs
2 packages of vanilla sugar
1/2 package backing powder
Food Dye, 4 would be nice.
Powdered Nutmeg
Powdered Cinamon
Powdered Anise
Artificial rum flavor (so its kids compatible)
Butter (less then a hand full)

4 Bowls (yeah really)
26cm (10 & 1/4 inches) springform pan
4 Spoons
1 Teaspoon

Step 2: Preparing the Pan and the Oven

Picture of Preparing the Pan and the Oven

I like to start off with preparing my pan and the oven.

Prehead the oven to 160c (320 Fahrenheit) top & bottomheat.
Trust me, don't use hot air or some other stuff, a cake tastes best with top & bottomheat.

Put a chunk of butter in the pan, and smear it all over the inside of it.
If its worth doing, its worth overdoing.
Use your hand or some kitchenpaper to do it.

Step 3: Preparing All the Powdered Stuff.

Picture of Preparing All the Powdered Stuff.

Get the biggest of your 4 bowls.
First off we give the sugar and the flour into the bowl.

Followed by 1/2 package backing powder (about a flat teaspoon), and 2 packages of vanilla sugar (2 teaspoons)

Then for the spices.
1 Teaspoon of the cinamon.
1/6 Teaspoon of the Nutmag
1/3 Teaspoon of the Anise

If you got that, stir it.
Yeah i'm not kidding, if you dont mix that good, you gonna have air bubles in your cake from the baking powder

Step 4: Liquid Stuff

Picture of Liquid Stuff

Now to the liquid stuff.

The oil and the water go into the jug, then you just add the 5 eggs.

Now to the artificial rum flavor. I don't know if you can get those small "bottle"thingies. If you do, add 1/2 of it.
If you don't, i think it should be about 1/2 teaspoon.

Thats it, no need to stir it.

Step 5: The (more or Less) Solid Stuff

Picture of The (more or Less) Solid Stuff

Ok, we are almost finished with preperation.

Just roughly chop up the marzipan. And don't eat all of it while your doing that....
You don't have to use such a big knife, but i'm not used to small ones.

Step 6: Finally Mixing It

Picture of Finally Mixing It

Now the mixing process is usually a no brainer.

Just add the liquid into your bowl (where you got the flour, sugar....), and start mixing.
If your dough looks homogenous, add the marzipan.

Now you can't mix it until the marzipan is completely gone.
If you got small crumps left, its ok, that will melt when baking it.

Step 7: Coloring It

Picture of Coloring It

If you don't wanna add colors, just skip this and the next step, and pour it directly into the pan.

Now the serious business, adding color.
Split your dough up in the 4 bowls.

Take out one of the "mixingthingies" of your electrical mixer.

Put the yellow food dye into one of the bowls, and mix it.
Well yellow doesn't affect the dough that much, but thats ok.

Then use the same "mixingthingy" for another bowl with the red food dye.

Swap the "mixingthingy" with the one that has no color on it.

Now do a bowl of blue, and after that the bowl with green.

You wanna save some green food dye, we can use that later.

The oof the colors works best that way. Why? Because yellow wont mess up red. And blue wont mess up green.

Green is also the color that works best, so you don't need all of it.

Step 8: A Rainbow Is Born

Picture of A Rainbow Is Born

Now we gonna create our rainbow. And this even works on cloudy days, and at night.

Arange your 4 bowls around the pan, and get a spoon for every bowl.

Now add 1 spoon of one color into the middle of the pan.
Then put another spoon of another color on top of that.
Then another spoon of another color on top of that....
Repeat that, and always alternate colors.
Always in the middle, but don't be to picky with that.

The dough will spread out it self very even, no need to help it.

When your finished, it should look something like the last picture of this step.

Step 9: Baking Is Not That Hard.

Picture of Baking Is Not That Hard.

If you got all your dough in the pan, put in the oven.
The top of the cake should be at the middle of the oven.

It takes about 40-50 Minutes. How to know its done?
Well there's a trick.

Take a wood or metal skewer, ram into the cake, it should go through the center point of the cake.

If no dough is on the skewer after you take it out, then the cake is finished. You still could leave it for 3-5 more minutes just to be safe.

When your cake turns to dark, but is not finished on the inside, don't worry.
Just take a piece of aluminium foil and cover the cake losely with it.
The foil will prevent heat radiaton to reach the top of the cake, but will still let convection heat do its work.

Don't take it out of the pan now, let it cool for some minutes.
While it cools down, we prepare the sugar cinamon glaze

Step 10: Glazing It.

Picture of Glazing It.

As an alternative, you can just put the powdered sugar on top of the cake, but i like it glazed.

Sugar glaze is actually pretty easy to make, if you know how to.

Take 6 teaspoons of hot tap water, yeah only 6.
Add 1/4 teaspoon of powdered cinnamon and your green food color.

Then add some of the powdered sugar. Mix it with a spoon.

Add some more, and mix it with a spoon.

You can get nearly a cup full with the amount of water you got in there.
The consistency we are looking for will be a bit less dense then toothpaste.

Now free that cake, and prepare your table with some paper, because you're about to create a mess.

Spread the glaze with a cooking brush (yes, there are special brushes for that purpose) or kitchen paper.

Let the cake finish cooling down, and then....

Step 11: EAT IT

Picture of EAT IT

Yeah, we got it.

You got some good tasting cake in front of you.

I'm sorry, i forgot to take picture of the complete glazed cake.

We just ate it, but i saved a piece.

And i got a picture of another one i did some months ago, its not glazed, but you see it better there.


renanoliveira (author)2017-03-06

i will definitely try this

gtoal (author)2015-07-24

This is *very* similar to what they call "Gypsy Cake" in East Anglia; it's a cake that bakeries make as a treat once a week, out of the pieces of leftover cake mix from all the other cakes that they make, so it's somewhat randomly multicoloured. Gypsy Cake also contains marzipan - the similarities can't be a coincidence? By the way, marzipan turns out to be surprisingly easy to make yourself, with equal quantities of almond flour (or just ground almonds) and icing sugar, and an egg white to bind it.

crashapollo (author)2012-10-17

Great Recipe, made one of my own last night and it looks brilliant

pheunis (author)2012-01-02

Instead of using sugar icing, can I use chocolate icing? Will it work with the taste of the cake? I just love this recipe and want to try it for a friend's birthday, but she loves chocolate (and marzipan) but not sure if it works together??

jhonny (author)2010-03-09

i used ur idea of the rainbow.

LimeTime (author)2010-02-15

My friend and I make rainbow cake all the time, generally with just a boxed mix, and we've never actually spent the time is put it in all nice and precise. That looks really cool.

donaoh (author)2010-01-20

Made the cake as my friends wedding cake, she loved it. Will try and dig out a picture of the cake. It was not a hippie wedding but still quite strange by Irish wedding standards. 
 I also made it for work for the shops i work in's 4th birthday, the staff loved it but customers thought we were trying to make them eat coloured soap. (I work in a soap shop which sells soap that looks edible)

Oshinangel (author)2009-11-23

that is awesome

pechka (author)2009-10-23

For at least some colors there are natural alternatives, such as turmeric for yellow, a red one that I can't remember at the moment, and I'll bet that if you soaked dried blueberries in enough water to soften, then mashed them you'd get a decent purple or blue dye. 

(Beautiful instructable, Wupme, thanks!

freakinslop (author)2009-08-29

its like the 70s in cake form!

santy22 (author)freakinslop2009-10-02

i needs more AUSTIN POWERS!

donaoh (author)2009-08-20

Im making the wedding cake at my friends wedding in 2 weeks. gonna try this one!!!! Its caketastic!!!!!!!

santy22 (author)donaoh2009-10-02

hmmm, only make it black and white. Weddings are formal unless ur a hippie.

joshuainthebox (author)2009-08-11

Looks great for a regular style cake batter...there is also a recipe out there for a tie dye cheesecake with a red velvet crust/bottom (just search it) and it comes out awesome. Made it once for a staff picnic and people went crazy over it! Thanks for sharing!

i_blow_it_up (author)2009-08-06

You said you published this in german on your blog. Could you please send me a link to this blog? I'd really appreciate this. :D

oscarthompson (author)2009-08-06

Looks abit like marble cake.. But with more colours

JakiO (author)2009-07-09

Could this work for a pre-mixed cake? Or does the Marzipan have something to do with it not mixing too much? (did that make sense????) :-) This looks outrageous!

wupme (author)JakiO2009-07-10

You can use a premixed cake for it if you want. At least i don't see a reason why it shouldn't work. You can mix as much as you like, the thing is just that the marzipan always will leave small "pieces" of itself in the dough, no matter how hard you mix. I just mentioned it so you don't worry about those Marzipan pieces, because they are ok. So pretty much nothing to worry about, except that cops are gonna pull you over if they see that cake on the backseat i guess....

brubruna (author)2009-07-03

Cool! I'm going to try it for my friend's birthday next August 2th *_* Looks so tasty *_* it's a piece of art **

maniuni (author)2009-04-15

i will definitely try this!

MissSmurfsnot (author)2009-02-10

Hi, When You say package, how much is this? I'm in Blighty you see! Would love this cake to by my daughters birthday cake. Thanks

wupme (author)MissSmurfsnot2009-02-11

Hmm let me think. 1/2 Package Backing Powder is a flat teaspoon (5gramms) 2 Packages Vanilla Sugar (can be the cheap artificial one) are 2 heaped teaspoons (so about 20gramm, you don't gotta be to precise on that one, 3 heaped teaspoons are fine too).

shadow12952 (author)2008-12-14


Agent-51 (author)2008-11-25

Very nice I will have to make this.

1arrow24 (author)2008-11-25

I'm going to make this for our 'cake day' in biology. I'll put an icing marijuanna leaf on it and remain adamant that it is just a victoria sponge mwah hahahahaaa

idiosigil (author)2008-10-30

GOD, I want to put my face in there and just drink it all down and then die.

gopeeinafridge (author)idiosigil2008-11-13

Hahahaha, what a great comment. I AGREE!

Ferrite (author)2008-10-22

Looks great. (would be an exclamation point by my keyboard is having problems) Any chance you could do a marzipan Instructable? I love marzipan.

wupme (author)Ferrite2008-10-22

You know what, maybee i can do that next month. (don't got any extra money left for this one) One ingridient for good marzipan aint that easy to find. Rose Water. At least in Germany, the only place i can think of would be a pharmacy. If ii can get some, you get a marzipan instructable. But be warned, the x-ray scanner on the airport sometimes can't differ marzipan from c4 ;) (no joke)

Blue Rose (author)wupme2008-10-31

Here in Holland I found rose water in Chinese or Indian "toko's", Shops where they also sell all kinds of Asian food, and the little china trinkets (incense holders, mortar&pesles, kitschy cat statues and cheapo daggers etc.)
Surely there are some of those shops on that side of the border _
Here every town has a few (at least that's what I found)

wupme (author)Blue Rose2008-10-31

Thanks, i never thought about looking at a chinese or indian store. Its true, they use it pretty common for sweet several dishes, sometimes i ask myself where my mind is.... But i'm not shure if we got one? I knew we had one, but the last time i've been there is about 8 Years ago. The city where i live is poor when it comes to other cultures, except for turkish stuff. Well if not, there is still the internet where you can get really everything :)

Blue Rose (author)wupme2008-10-31

Good Luck finding it then _

Which city do you live in if I may ask?

wupme (author)Blue Rose2008-11-03

Ludwigshafen am Rhein, near Heidelberg.

Ferrite (author)wupme2008-10-29

That would be great! I've never heard of Rose Water before except in books, never seen it in a store either, good luck finding it! The security will probably let you thought with it if you give them some : - )

idiosigil (author)2008-10-30

looks so beautiful. i want.

Plasmana (author)2008-10-26

That is so cool!

pls (author)2008-10-23

that looks awesome lol.

LinuxH4x0r (author)2008-10-22

Awesome! Trippy looking cake.

tracidraw (author)2008-10-22

What a great and fun surprise!

canida (author)2008-10-22

That looks awesome!

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