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A chocolate explosion birthday cake for my 25th birthday!

Happy birthday to me!

So today, 20th October, is my birthday! This year, I have turned 25. I’m not entirely sure how I feel about this, so I decided to bake myself a bit of an explosion chocolate cake. FYI, it was heavenly.

I love baking cakes and such, but fondant is a bit of an effort for me, so I always prefer to do a cake like this for myself. I love making them as its easier for me, its delicious, and I think they look awesome. Yes, its a little sad to have to bake your own birthday cake, but I decided to make this one two days before so I could relax on my actual birthday!

I merged a few recipes together to create this one, as I was really in a chocolatey mood. I used a cute  silver ‘Happy Birthday’ cake topper from Iced Jems for the ‘Happy Birthday’ sign, and I thought it just made it that bit more special. To some, it could look messy, but I love it.

For the Recipes

For the Method

  • I followed a similar method to my Oreo drip cake recipe, and then inserted some chocolate bark shards, and randomly added things on to get a cool style. Its one of those things you don’t really want to think about too much. Just place and roll with it!

These sort of bakes really are an experiment from the beginning, and you learn what you like as you go!

I hope you all love the cake as much as I did, and if you ever want to make your own version then do show me yours by commenting on my Facebook posts, or tagging me on social media like Instagram with #janespatisserie!

If you need a little help on how to do a drip cake, check out my back to basics blog post for a chocolate drip cake. I have tried to explain in a lot more detail each step along the way of the making process! Thank you all for supporting my blog daily, I really do appreciate it.

Find my other recipes on my Recipes Page!

You can find me on:

J x

© Jane’s Patisserie. All images & content are copyright protected. Do not use my images without prior permission. If you want to republish this recipe, please re-write the recipe in your own words and credit me, or link back to this post for the recipe.


  1. Claire Frew on September 18, 2019 at 9:05 am

    I am so delighted to have discovered your blog. Such a talent!! Making the Oreo Drip cake for my daughters birthday this weekend following the success with many of your other recipes.

  2. Aliza on August 8, 2019 at 8:31 am

    Amazing cake jane i liked it very much. i have a question
    How does the buttercream recipe for your cupcakes differ to cover this cake? or is it the same amount?

    thank you!

  3. Clair on September 20, 2018 at 8:58 am

    Hi Jane
    for the chocolate buttercream, did you use the same quantities as your receipe for the chocolate cupcakes or do i need more as its quite a big cake?

    • Jane's Patisserie on September 20, 2018 at 9:08 am

      I made a big batch as I was baking other stuff at the time as well, but you would probably need at least double!

  4. Fiona on September 4, 2018 at 3:41 pm

    HI Jane, what size isn’t this cake? Is it an 8inch? If I wanted to make a 10inch own much would you add to the ingredients?

    • Jane's Patisserie on September 5, 2018 at 10:19 am

      This is an 8″, and using my Oreo Drip Cake recipe as linked. To scale up to a 10″, you need to add on another 2/3 of the recipe, and split between three tins to bake! x

  5. Ola on April 11, 2018 at 5:27 pm

    Hi Jane, do you think the drip will work with Cadbury’s chocolate! I have 850g bar and don’t want to buy anymore unless I have to. Thank you.

    • Ola on April 11, 2018 at 5:28 pm

      Oops, exclamation mark is not supposed to be there, it is a question….

    • Jane's Patisserie on April 11, 2018 at 9:36 pm

      I’ve never used Cadbury’s as a drip before, but it might be thicker than regular dark chocolate when melted because of the other ingredients. Its definitely worth a try, but keep an eye on the oil you add!

    • Ola on April 12, 2018 at 6:15 pm

      THANK you, which brand do you use for your drip – cooking chocolate the one you find in baking section or eating chocolate the one in confectionary?

    • Jane's Patisserie on April 12, 2018 at 7:43 pm

      I tend to use just regular supermarket own chocolate which you can get down the confectionary isle, or a use a brand called Callebaut. x

  6. Angela E on January 13, 2018 at 4:27 pm

    I’ve just attempted to make this. My buttercream kept dragging the sponge away despite putting on a crumb coat and leaving it for 2 hours. Please can you give me some tips? Thank you.

    • Jane's Patisserie on January 13, 2018 at 6:28 pm

      Sounds like your buttercream was far too firm. Try making it slightly softer with 1-2tbsps boiling water.

  7. Ola on December 25, 2017 at 9:23 pm

    Hi Jane, I am thinking of attempting this cool cake. Could you please tell how you make your chocolate bark stand on the cake – do you push it into the cake ?

    • Jane's Patisserie on December 26, 2017 at 11:56 am

      Yes basically you have to carefully push them into the cake! Make the chocolate bark reasonably thick so that it doesn’t break, and wait till its completely solid and push in!

  8. Georgia on November 22, 2017 at 12:39 pm

    How does the buttercream recipe for your cupcakes differ to cover this cake? or is it the same amount?

    thank you!

  9. Namely Roy on November 17, 2017 at 6:55 am

    Happy Belated Birthday Jane! Hope you will be good. And you enjoyed a lot. Best wishes to you dear. Thanks for this yummy chocolate. I got always good stuff from you. Keep it up.

  10. Laura on October 30, 2017 at 11:42 am

    Hi Jane, for the buttercream- do you use the same quantity as the cupcakes? X

    • Jane's Patisserie on October 30, 2017 at 11:59 am

      Hiya – I’d use three times the amount to cover the inside, and outside ☺️

  11. Betty F on October 21, 2017 at 6:02 pm

    I want to add my birthday wishes too. Cake looks so delicious. October is my “Birthday month” also, I just turned 81. 🙂

  12. Silvia on October 21, 2017 at 4:53 am

    Stunning cake! And Happy birthday!

  13. Paula on October 20, 2017 at 6:30 pm

    Happy Birthday!
    Thank you for all the lovely recipes so far!
    Hope you have a lovely day!

  14. Maiu on October 20, 2017 at 3:29 pm

    Happy Birthday!!!
    The cake looks amazing!!!!

  15. Diana Sillery on October 20, 2017 at 3:27 pm

    That’s lovely Jane x

  16. Pola on October 20, 2017 at 1:20 pm

    I love that it just HAD to include chocolate orange slices. So very you. Happy Birthday Jane, here’s to another year of joy in bakery and confectionery! Love the print on your top too. 🙂

    • Jane's Patisserie on October 20, 2017 at 5:49 pm

      Oh of course it did – and they’re perfect. ? And thank you!

  17. Lori on October 20, 2017 at 12:22 pm

    Happy Birthday! That is an amazing cake!

  18. helen ludlow on October 20, 2017 at 10:39 am

    that looks amazing – how do you stay so slim cooking all these cakes I would have to indulge!!!

    • Jane's Patisserie on October 20, 2017 at 5:48 pm

      You can easily be slim and still eat cake.

  19. Samantha on October 20, 2017 at 9:10 am

    This looks amazing!!! Going to attempt one today ?.
    Hope it turns out well x

  20. Jane C on October 20, 2017 at 9:05 am

    Happy birthday! The cake looks amazing, I might have to give it a go myself (if I want a birthday cake, I usually have to bake my own, so you’re not alone in that!)

    • Jane's Patisserie on October 20, 2017 at 5:47 pm

      If I don’t bake it, I never get a cake so I thought I might as well haha and thank you!!

  21. Angela Burnley on October 20, 2017 at 8:53 am

    Loved watching you as I haven’t seen you live before! Hope he enjoys your cake!

  22. Vida on October 20, 2017 at 8:43 am

    Happy Birthday janes….???

    Luv your birthday cake??

  23. Sophie Leachman on October 20, 2017 at 8:36 am

    Happy Birthday Jane!
    Your cake looks fabulous – as they all do!
    Have a fantastic day 🙂 x

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