*This post may contain affiliate links. Please see my disclosure for more details!*

Yummy Galaxy chocolate cupcakes with a chocolate cupcake sponge, Galaxy chocolate buttercream frosting. GALAXY HEAVEN!

Galaxy chocolate cupcakes

Galaxy = yum. Chocolate = yum. Cupcakes = yum. Galaxy chocolate cupcakes?! Oh holy moly yum! I just can’t really cope with how good they are. Like, I am so proud of the photos of these cupcakes, because I think it shows how good these cupcakes are.

I thought these cupcakes deserved a good start, and that paragraph I think sums them up nicely. I am obsessed with them. They’re delicious, so chocolatey and heavenly. How many times can I say that before it gets boring?! Honestly? 

Cupcakes

Anyway… the cupcakes. I decided to use my standard brown sugar chocolate cupcake sponge. It’s an easy basic sponge, plus cocoa powder. They’re still light and delicious, and I use them in so many recipes – including my Toblerone cupcakes!

If you wanted a richer and more indulgent cupcake mix however – I one hundred percent recommend using my chocolate fudge cupcake recipe. They’re gooey, so fudgey, and purely epic. However, I understand that not everyone wants to go through that faff of the recipe, so I went for a basic on for these bad boys!

Baking cups

As usual I used my all time favourite baking cups from Iced Jems. The good thing about them is that they’re so easy to use, and she sells so many of them there is always ones to suit your theme! I used the brown polka dot baking cups as the brown colour fit the chocolate theme! 

Chocolate 

Like me, you can put some chopped galaxy throughout the cupcake – but its completely optional. You have enough galaxy in the buttercream and decoration that you definitely don’t need it – but I just love going a little overboard on a flavour theme! As you all well know… 

As you can get the darker galaxy collection now, I used half of that and half of the regular galaxy in the buttercream frosting, but either work perfectly. It’s why the buttercream frosting is slightly darker – but don’t worry.. it tastes perfectly like Galaxy still!

Piping

I used my favourite 2D closed star piping tip for the frosting – as I am just obsessed with the swirl it creates. a 1M open star piping tip also works really well though. I always use ‘medium’ size piping tips in general, apart from a couple which are large. 

I sometimes get comments saying how are my swirls so good, when others come out looking a bit like spaghetti, and that’s because a lot of piping tips that are sold in places such as supermarkets are much much smaller than the ones I use. 

Decoration

For the decoration I use a couple of chunks of galaxy chocolate, a galaxy counter, and my favourite bronze crunch sprinkles. I was going to do a drizzle of galaxy chocolate… but I might have eaten the spare required for that job. My bad. 

ENJOY THESE BEAUTIES! x

Galaxy Chocolate Cupcakes!

Yummy Galaxy chocolate cupcakes with a chocolate cupcake sponge, Galaxy chocolate buttercream frosting. GALAXY HEAVEN!
Print Pin Rate
Category: Cupcakes
Type: Cupcakes
Keyword: Chocolate, Galaxy
Prep Time: 20 minutes
Cook Time: 20 minutes
Decorating Time: 20 minutes
Total Time: 1 hour
Servings: 12 Cupcakes
Author: Jane's Patisserie

Ingredients

Cupcakes

  • 150 g Unsalted Butter/Stork
  • 150 g Light Brown Sugar
  • 120 g Self Raising Flour
  • 30 g Cocoa Powder
  • 3 Medium Eggs
  • 100 g Galaxy Chocolate (chopped)

Buttercream

  • 150 g Unsalted Butter (not stork)
  • 300 g Icing Sugar
  • 175 g Galaxy Chocolate (melted)

Decoration

  • Galaxy Chocolate
  • Galaxy Counters
  • Sprinkles

Instructions

For the Cupcakes

  • Preheat your oven to 180C/160C Fan, and get your 12 cupcake cases ready.
  • Beat together your butter and sugar, until light and fluffy.
  • Add in the flour, cocoa powder and eggs and beat until a lovely cake mix is formed!
  • Fold through the chopped galaxy chocolate!
  • Split evenly between the 12 cases, and bake in the oven for 17-20 minutes. I bake mine for 18 minutes!
  • Once baked, leave to cool fully.

For the Buttercream

  • Make sure your unsalted butter (not stork) is at room temp.
  • Beat your butter until smooth.
  • Add in the icing sugar and beat again!
  • Add in your melted galaxy chocolate and beat till a lovely buttercream is made. If it's a little stiff, add in 1-2tbsp of boiling water. Only do this is essential!

For the Decoration

  • Pipe your buttercream onto the cupcakes with your favourite piping tip - I use a 2D closed star piping tip.
  • Add on some galaxy chocolate - I did two chunks of galaxy chocolate and a galaxy counter per cake, and then sprinkled on my favourite sprinkles.
  • ENJOY!

Notes

ENJOY!

Find my other Recipes on my Recipes Page!

You can find me on:

Instagram
Facebook
Pinterest
Twitter
Youtube

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.

94 Comments

  1. Emily on May 21, 2024 at 11:48 pm

    Hi Jane! I was wondering if you can making this recipie using galaxy caramel chocolate? If so would you recommend using it in both the cupcake batter and the frostings or just inside the batter? And would you use the same amount? Thank you!

  2. Kel on May 29, 2022 at 5:27 pm

    Hi, I’ve been asked to make a galaxy choc birthday cake next week and love your recipes. I can only find the cupcake recipe. Could I adapt this to make one big cake?

  3. Lauren on May 7, 2022 at 6:35 pm

    How do I make this recipe into a cake? I want to make it as a birthday cake thanks xx

  4. Zara on May 6, 2022 at 5:09 pm

    Hi Jane if I’m making it with my 4 year old sister ,can I add food die and if I do how much would I us in the buttercream?
    Thank you very much 🤗🤗

    • Jane's Patisserie on May 17, 2022 at 1:17 pm

      Hiya! You can give it a go – however it may be slightly tricky as the buttercream is chocolate so you won’t be starting from a white base! Hope this helps! x



    • Kathryn on March 22, 2026 at 4:28 pm

      Hi jane. Ive had a go at these cupcakes today but the buttercream was extremely oily. I worked out it was probably due to my butter being way to soft as it is a hot day. I tried adding more icing sugar to try dry it up as adiviced on google search with no luck so tried putting it in the fridge for few minutes (15 to be precise) with also no luck. It was also hard to get the right consistency for piping any tips would be much appreciated. Thanks



    • Jane's Patisserie on March 24, 2026 at 9:34 am

      Hiya – what exact butter did you use? Sometimes if it does become too warm this can happen. It may have needed slightly more chilling time, and then re-beating again x



  5. Amber on May 5, 2022 at 12:24 pm

    Hi I made this recipe and My icing was a lot paler than yours, why would this be? I followed the recipe exactly xx

    • Jane's Patisserie on May 17, 2022 at 1:12 pm

      Hiya! In the blog post, I note the I used part regular and part dark Galaxy, so that would be why! Hope this helps! x



  6. Rosie on September 9, 2021 at 3:28 pm

    Hello! Love all your recipes. I am looking at making these but instead miniature cupcakes (like canope/bite size).
    How many mini cupcakes do you think this recipe would make and how long would they need to be in the oven?
    Thank you!

    • Sam on September 26, 2021 at 12:36 pm

      How long should I wait to add the melted chocolate to the buttercream? So excited to make these!



    • Katie on March 1, 2022 at 8:55 am

      Hi Jane,
      I love this recipe so much, I’m looking to use it to make an 8 inch cake, how many times would you say I should increase the recipe by? Thanks



    • Jane's Patisserie on March 6, 2022 at 4:59 pm

      Usually one batch of cupcakes = 1 8″ cake baked for 30 minutes! Or, use ratios from my layer cake recipes! x



  7. Debbie on July 5, 2021 at 9:49 am

    can i make these galaxy cupcakes into gluton free

  8. Claire on June 11, 2021 at 6:40 am

    Hi Jane
    With the stork butter for the cupcakes do you leave it at room temperature or can you use it out of fridge?
    Thanks Claire

    • Jane's Patisserie on June 14, 2021 at 11:08 am

      Hey, for the sponge it can be out of the fridge x



  9. Rosie on June 4, 2021 at 7:00 am

    Hello Jane! Would you be able to use another chocolate like dairy milk or lindt for the sponge? Thank you and have a nice day 🤍

    • Jane's Patisserie on June 4, 2021 at 9:31 am

      Hey! Yes most should work, thank youuu and you xx



  10. Claire on June 2, 2021 at 7:39 am

    5 stars
    Hi Jane,
    Love these cup cake but do u use a beater attachment or wisk attachment to make cake mix. Thanks Claire

    • Jane's Patisserie on June 2, 2021 at 9:44 am

      I always use a beater to make cupcake batter and buttercream, never the whisk x



  11. Kerryann on April 13, 2021 at 12:04 am

    I was scrolling this afternoon looking for a quick cupcake recipe to make with my children and came across these beauties!! Really easy to make and taste super delicious and I haven’t put the topping on yet!

    • Jane's Patisserie on April 13, 2021 at 12:27 pm

      Hey! Yayy I am so pleased you all enjoyed them xx



  12. Karen Cullen on March 22, 2021 at 1:02 pm

    Hi Jane, what cocoa powder do you recommend for your chocolate cakes? I wouldn’t want the rich creaminess of the galaxy chocolate to be taken away with an over powering bitter cocoa powder.

    • Jane's Patisserie on March 22, 2021 at 3:50 pm

      I use Barry cacao 100% – but I find it is delicious so doesn’t over power x



  13. Gemma Quinn on March 3, 2021 at 5:38 pm

    5 stars
    Hi Jane, I made these for a friend and they went down really well. My question is how do I adapt the recipe for a 10″ square cake tin? Would I be able to adapt the galaxy buttercream to a fudge cake frosting?

    • Jane's Patisserie on March 3, 2021 at 8:10 pm

      Hiya! So I normally say one batch of cupcakes makes 1x 8″ round cake – so a 10″ square I would actually double the recipe (not sure on bake time though but maybe like an hour at 150fan? x



  14. Grace Macdonald-cain on February 28, 2021 at 8:05 pm

    Hi I’ve made these before and making these again now. But I don’t have any galaxy chocolate for the buttercream could I make this with normal milk chocolate? Hopefully you will seen this soon. Many thanks.

    • Jane's Patisserie on February 28, 2021 at 10:06 pm

      Yes you can! X



    • Lauren on March 30, 2022 at 1:34 pm

      How cool does the melted chocolate need to be before adding it to the buttercream?



    • Jane's Patisserie on March 30, 2022 at 3:50 pm

      Hiya! Your chocolate should be at room temp before adding it to the buttercream. Hope this helps! x



  15. Gillian Downey on February 2, 2021 at 5:28 pm

    5 stars
    Ive these for my kids a few times now and they love them….can i make them gluten free by changing the flour and using xantham gum? Would it work ok? Thanks Gill

    • Jane's Patisserie on February 2, 2021 at 6:52 pm

      Yes!! As long as you double check all other ingredients as well obviously it works perfectly! x



Leave a Comment

Recipe Rating








This site uses Akismet to reduce spam. Learn how your comment data is processed.