Tutorial: Marble Chocolate Cake

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Marble Chocolate Cake

Like the Marble Cake I made last weekend? Want to know how INCREDIBLY easy it is to make? Then keep reading…

You will need:

  • 1 x Frosted Cake – I used a 2 layer Vanilla Sponge Cake covered with Chocolate Buttercream
  • 400g White Chocolate
  • 400g Dark Chocolate
  • Greaseproof Paper

Grab your iced cake to start, the final cake looks like it has multiple tiers but thats just the effect of the chocolate decorations.

Make sure you have a clear workspace and cover it with greaseproof paper.

Now all you need is the chocolate – I used a mixture of White and Dark Chocolate, the flavours were great together!

Get melting!

Make sure you get a good liquid consistency before taking off the heat (add vegetable oil if you need to).

Create medium size circles with the dark chocolate (and one big circle for the centre piece)…

…then spoon a little white chocolate around the edges of the Dark chocolate circles.

Then simply cut through the circles with a knife to create to marble effect and a more unusual shape – less is more here, overwork the chocolate and you will just have a light brown blob (talking from experience here!)

Now let the chocolate set – do not attempt to lift these up too soon, I know its tempting, they look and smell so good, but back away from the chocolate until completely set!

Ok once they’re completely set, dip a knife in hot water then cut through the shapes to create one flat edge.

Like so!

Now spread a little melted chocolate on the back, this will act as a glue to stick it to the cake.

You can now stick the chocolate shapes to your cake, start around the base first…

…then cut a circle about 1/2 inch deep into the cake, you can slot your second layer of chocolate shapes into this.

Finally stick in your extra large shape into the centre of the cake. I had a few leftover shapes also that I broke up and stuck into a few gaps!

Told you it was simple! Enjoy having a go, I’d love to see you have a go in different colours!

Jem x

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  1. Chris W
    Chris W01-30-2011

    I must say this cake is amazing. You must have had some sort of divine inspiration to come up with something so creative. I can’t put my finger on it but theres something decidedly scottish about this… πŸ™‚

  2. Cheryl
    Cheryl02-01-2011

    How many chocolate pieces did you make total?

  3. IcedJems
    IcedJems02-01-2011

    Hi Cheryl, I used 13 pieces in total – 12 small ones and 1 large one for the centre. It was more than enough! Jem x

  4. lisa finnigan
    lisa finnigan02-06-2011

    wow this is stunning yet your pics make it look so simple! will deffo be having a go myself once I get a free day. Will report back with how it goes x

  5. Sheila
    Sheila02-12-2011

    Stunning!! Thanks for sharing this fantastic tutorial!!

  6. Harriet
    Harriet02-16-2011

    wow this looks amazing, ur very creative thanx for sharing x

  7. IcedJems
    IcedJems02-17-2011

    Thanks Harriet! If you make it be sure to post a picture to the facebook group! x

  8. Baker Planners
    Baker Planners02-27-2011

    Wow!
    This is incredible…will def give this a go!

  9. kim
    kim02-27-2011

    Im going to try this today, did you just use buttercream to ice the cake, do u think chocolate ganache would work aswell would it not sick to it?

  10. IcedJems
    IcedJems02-27-2011

    Kim, chocolate ganache would work great as it sets a bit harder than buttercream, but yes buttercream is what I used πŸ™‚ I’d love to see a picture of the final thing – be sure to upload it to the facebook group!

  11. Li'a Mora
    Li'a Mora03-10-2011

    You are *fantastic*!! I can’t get over your creativity… BUT- how do us mere mortals CUT such a pretty cake?? How did YOU cut it?! I’d end up breaking it all into pieces- which would definitely be illegal in the baking biz.

  12. IcedJems
    IcedJems03-10-2011

    Thanks L’ia! You are too sweet! Just checked out your blog too and I love it! I see we share a love for potatoes and cheese mmmmmm. You basically have to accept that when you cut the cake, it will probably fall apart – but its cool seeings as it usually gets demolished in about 5 minutes anyway! x

  13. sharon
    sharon03-14-2011

    Hi jem,how much chocolate do you need?

  14. IcedJems
    IcedJems03-14-2011

    It depends on the size of cake you are using, but we used about 3 big bars of white and 3 bars of dark for that one (with chocolate leftover)! Hope this helps! x

  15. miss_molly
    miss_molly03-23-2011

    this was as easy as it looked and it impressed the bee geebers out of the birthday recipient! thanks for sharing

  16. Li'a Mora
    Li'a Mora03-26-2011

    Just wanted to let you know that I’ll be making this tomorrow for my bf’s birthday. I’m sooper-dooper lazy (or busy, whichever), so instead of chocolate icing, I’m making a white cream cheese frosting for the cake (three layers), but following the recipe to the ‘t’ for the beautiful white and dark chocolate designs… I’ll post the pics of the result tomorrow or Monday!!

  17. Kirsty Dickson
    Kirsty Dickson04-11-2011

    Hiya i have a question? I attempted to do this gorgeous cake using different colours as suggested but after adding food colouring to the chocolate it turned into a crumbly mess and then once i’d managed to get it back to a decent consistency the chocolate looked great on paper but it wouldn’t set even in the freezer…. any tips on what i did wrong and to correct them cos i really love this cake!

  18. Tammy
    Tammy04-11-2011

    I have never before seen anything like this! it just makes me smile looking at it… πŸ™‚

    Its my boyfriends birthday coming up and im gonna be sure to impress him by giving this a go!.

    I will be sure to let you know how i get on…and shall post a photo (depending on the outcome!) heehee

    Thankyou for such a great idea…you are very talented πŸ™‚ x

  19. IcedJems
    IcedJems04-11-2011

    Hi Kirsty,
    It depends on the food colouring you are using, oil based works best with chocolate. I’ve heard powdered colouring works well toot hough I’ve never tried it! I tried the cake with colours too but I used candy melts in various colours! Hope this helps! πŸ™‚ x

  20. IcedJems
    IcedJems04-11-2011

    Thanks so much for your kind comments Tammy! I hope the cake goes well for your boyfriends birthday! I would love to see a photo πŸ™‚ x

  21. Dianna
    Dianna04-12-2011

    Kirsty: I’m guessing you probably used the wrong kind of food coloring. You can’t use regular food color for chocolate, you need to use candy color and your chocolate will come out perfect in any color. Goood Luck, Hope this helps.

  22. Katie
    Katie04-14-2011

    What chocolate cake recipe did you use? I have been trying desperatly to make a mudcake but every recipe I use it comes out all stodgy and inedible! :O(

  23. Marc
    Marc05-15-2011

    It’s beautiful and I might even make it, but, let’s see you cut it.

  24. Jeannie
    Jeannie05-15-2011

    My daughters 22nd birthday is on the 25th. She has requested a strawberry rhubarb pie and I will be making it – but since I am not a fan of that and I’m sure not everybody is – I will be attempting to make this cake as well. Our bulk stores sell all colours of chocolate but I love the white and dark chocolate affect!! Thanks for such a beautiful idea!!

  25. Lianne
    Lianne05-20-2011

    I have never seen a cake like this before! Very nice and creative. I will definitely try this recipe for my husband’s birthday!

  26. Trish
    Trish06-17-2011

    Jem, this is absolutely gorgeous. It’s such a refreshing change of pace from fondant character cakes and topsey-turvey cakes. It’s very sophisticated and I love the tutorial too.

    I’m not a baker but I do have friends that bake, so I’ve taken the liberty of posting the image of the finished cake (uploaded to my server – not using your bandwidth) on my blog. Of course I included a link back to the tutorial, a link to your about page, and a link to your tutorial page.

    I’ll definitely be keeping an eye on your blog and if my baking friends don’t get the message, I may have to be forceful.

  27. Eiman
    Eiman03-21-2012

    This is so gorgeous – you are very talented! I’ll be making this for a birthday on Friday and was wondering if you could help with a few questions I have please?

    – What chocolate cake recipe did you use and what size tin did you use? I think that’s the perfect height and I’d really like similar height to my cake so it would help to know what size tin you’ve used.

    – I need to travel with the cake on Saturday afternoon so how far in advance would you say I would be able to stick the marbled pieces on? I’d like to do as much as possible on Friday evening but I’m hoping they won’t fall off or drop off or anything by Saturday afternoon?

    Thanks for all your help! x

  28. As (Keek! en zo)
    As (Keek! en zo)07-25-2012

    Looks horribly good.. i need to try that one soon! β™₯

  29. astrid
    astrid08-02-2012

    thank you thank you thank you, my son is coming back tomorrow after a two week training in an air base, so my heart is beating so fast and I want to have a great welcoming and your idea is more than perfect, thank you so much for sharing and have a great weekend πŸ˜‰

  30. IcedJems
    IcedJems08-02-2012

    So happy that you like the tutorial and are going to make it Astrid πŸ™‚ Please do share the pictures with me! x

  31. Dyskalkulie
    Dyskalkulie08-10-2012

    This cake looks stunning and yes, you are rhight: It is easy! have to try this for the next cake!

  32. Nathalie
    Nathalie08-13-2012

    Hi ! I make your marble chocolate cake last week but my chocolate decoration don’t become white and it was glued on the paper (sorry for my english but I’m french ^^). How can I solve this problem ?

  33. IcedJems
    IcedJems08-15-2012

    Hi Nathalie, did you use Grease-Proof Paper to do the chocolate decorations on? As there should be no problem peeling chocolate off Grease-proff paper. What colour did you chocolate turn out instead of white? It may be the quality of the chocolate used, or maybe it was marble too much so the colours mixed? And no need to apologise for your english, it’s perfect! πŸ™‚ Jem x

  34. Bev Eaton
    Bev Eaton08-19-2012

    Hi Jem

    The cake looks fab, however, I have a question. The chocolate is left to set flat on the grease proof paper so how do get the pieces to fit together around a round cake. Surely they will break when fixing to the curves of the cake???

    Bev x

  35. IcedJems
    IcedJems08-20-2012

    Hi Bev, the chocolate pieces are small enough that they do not need to bend at all, you just sticks them round the sides and overlap them, I guess from above it would look like more a hexagon shape but side on it looks smooth! Just don’t make the pieces too large πŸ™‚ x

  36. Bre
    Bre08-25-2012

    This is such a unique cake! I’m sure it tasted fantastic too, especially with all the extra chocolate!

  37. sangita jain
    sangita jain09-26-2012

    I just cant thank u enough for the amazing tutorial.U made my day.All hats off to u.Keep up the good work.I wld be extra delighted if u cld post an eggless choclate cake recepe.My cake tastes doughy.

  38. Roberta Taylor
    Roberta Taylor10-30-2012

    Thank you so much for pointing me in the direction of your tutorial. It really does look beautiful. Could the pieces be made in advance & stored in a tin or airtight container?

  39. IcedJems
    IcedJems10-31-2012

    Hi Roberta, Thanks for visiting and taking the time to comment! πŸ™‚ Yes the pieces could certainly be made in advance, chocolate lasts a good amount of time before spoiling! x

  40. Kym
    Kym10-31-2012

    I made this cake last year and everyone loved it. I used a dark chocolate cake, filled with peanut buttercream and covered in chocolate buttercream and milk and white chocolate pieces. It went down a storm and has become known as the ‘Chocolate Explosion cake’! This week I’m going to a fireworks party and plan on making the cake again using dark chocolate and candy melts in a few different colours for the chocolate pieces, which I am hoping will look like a kind of firework explosion… Will report back with photos! πŸ™‚

  41. chefwithin
    chefwithin01-09-2013

    Woow ! I am impressed. You make it look so easy. Will try it soon and keep you posted. Thanks again for sharing. You are so talented and creative.

  42. maria
    maria05-11-2013

    thank you for this tutorial, it is so easy but I could never guess how to do it in may own, you’re a genious…

  43. Lisa
    Lisa01-09-2014

    Oh I have to try this πŸ™‚

  44. Kelly
    Kelly01-13-2014

    I made this cake over the weekend for some friends birthday party. It was remarkably easy and looked extremely impressive. Thanks for a great tutorial x

  45. Tracey
    Tracey02-24-2014

    Made this for a birthday cake ….. Amazing such fun to make too So a Big thank you for all your tutorials πŸ™‚

  46. Tasmia
    Tasmia05-17-2014

    Hi! I love the tutorial — thanks for sharing, I actually tried this before and failed (total guesswork) I didn’t realise you had to cut the bottom to make a sharp edge haha seems so simple now! Thanks soooo much for the heads up!

  47. Patti
    Patti05-17-2014

    This is so awesome. Looks very easy to do. I will have to try this. Can’t be that hard now can it? πŸ™‚

  48. Darlene
    Darlene06-05-2014

    Love this cake but how do you cut into it?

  49. Fiver Feeds
    Fiver Feeds09-17-2014

    It’s so amazingly decorated! I love it!

  50. Nat
    Nat10-08-2014

    omg i’m gonna do this tonight!!

  51. Mona
    Mona11-25-2014

    Great tutorial! I tried it out with blue and white and made “waves” for a fish themed birthday cake. You can check out the results on http://cupofsugarpinchoflove.blogspot.com/2014/11/birthday-cake-take-two-or-fish-food.html if you’re interested. Thanks again!

  52. Aditi Sengupta
    Aditi Sengupta12-29-2014

    Thank you, for sharing this detailed tutorial. I baked a white chocolate frozen themed cake following these instructions. I wish I could share a pic with you. Saw this cake on Pinterest n loved it instantly.

  53. Lilya
    Lilya03-23-2015

    Quick question, what kind of chocolate did you
    Use for those designs?? Do chocolate chips, chocolate and vanilla bark work??

  54. Iced Jems
    Iced Jems03-25-2015

    Hi Lilya, I actually just used ordinary supermarket blocks of chocolate and they worked well for me. I imagine anything would work, I’ve seen people do multicoloured ones using candy melts. x

  55. Fezile
    Fezile01-07-2016

    I have made this amazing cake for my daughter’s Birthday today and everyone stunned.
    Thanks to you xxx

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