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The most delicious air fryer galaxy cake with a super addictive galaxy chocolate ganache. Loaded up with leftover Easter chocolate for the best way to enjoy your Galaxy easter egg.

We also make this Galaxy chocolate cake even easier by using the Thermomix to mix everything and to make the chocolate ganache.

Air Fryer Galaxy Fan
Air Fryer Galaxy Fan
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Galaxy Chocolate Cake

There is no denying it. I am a HUGE galaxy chocolate fan and have loved it ever since I first tried it as a kid.

Whilst other kids were team Dairy Milk and preferred Cadbury’s I always loved Galaxy more.

The other problem is I can’t control myself. I can’t just have one line of a galaxy chocolate bar, I have to have a whole one.

So, when I was thinking about what Easter cakes to make you for the air fryer that can be made with Easter eggs, my first thought was, to make a galaxy chocolate cake and make it in a similar way to when we make an air fryer chocolate cake. But of course, make it easier by mixing everything in the Thermomix. But note if you don’t have a thermomix you can do it by hand.

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Can Galaxy Chocolate Be Melted?

Yes, galaxy chocolate can be melted and its one of my favourite chocolates to melt and I would choose melting galaxy chocolate over Cadburys. Its because Galaxy, also known as Galaxy smooth is a very creamy chocolate and once melted it will make the best fondue or like we are using it today, as a delicious chocolate ganache.

Thermomix Cake Meets The Air Fryer

I never realised I needed a Thermomix until I got one. I never got on with any food processors I had tried, and Thermomix has just become my baking BFF.

I also hate baking cakes in the oven and find that I always burn them or forget about them.

That is why my dream cake is a Thermomix mixed cake and then baked in the air fryer.

Is Air Fryer Good For Cake?

Yes, an air fryer is very good for cake. I have been cooking cakes in the air fryer for almost 10 years and have done so many different types and they are yet to fail me.

I have made a typical air fryer chocolate cake, an air fryer victoria sponge, air fryer carrot cake and air fryer lemon drizzle cake to name a few.

Can You Use A Normal Cake Tin In An Air Fryer?

Yes, you can use a normal cake tin in the air fryer BUT it must fit the size of your air fryer. For example, in this air fryer Christmas cake the silicone cake pan we are using is a 6 inch and comfortably fits the air fryer basket.

However, if we had a deep cake pan or a larger sized cake pan, it wouldn’t fit the air fryer.

Plus, we much prefer to use silicone as there is no parchment paper required and it never sticks.

What Temperature Do You Air Fry Cake?

We have found that the perfect temperature to air fry cake is 160c/320f this cooks the cake in the centre and stops it from burning on top.

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Galaxy Cake Ingredients

Galaxy Cake Ingredients

Cake – We are using similar ingredients to our main chocolate cake, except adding in Galaxy hot chocolate powder rather than cocoa powder. Other key ingredients include caster sugar, self raising flour, unsalted butter, vanilla extract, milk and olive oil.

Ganache – Plus, for the ganache we are using Galaxy easter chocolate, butter and double cream. The butter makes it taste even better.

Chocolate – Then of course after covering the cake with ganache we added lots of chocolate decorations over the cake that were a nice mix of leftover Easter chocolate.

You can of course mix and match with any Easter supplies you have available. You can also make this after Easter to make use of all the chocolate that needs using up.

Plus, you can opt to make extra chocolate ganache for the middle of the cake or add a little of our Thermomix buttercream with some extra Galaxy and you have a chocolatey buttercream.

Then for the kitchen gadgets that we have used in this galaxy chocolate cake recipe it has been our Cosori & Philips Air Fryer. Plus we have also used our Thermomix.

Plus, we recommend you head over to our air fryer recipes category as we have more than 500 tried and tested air fryer recipes and have been air frying for 10 years.

How To Make A Galaxy Themed Cake?

  • Mix. Start by mixing sugar and butter in the thermomix until light and fluffy. Then add the remaining wet ingredients (olive oil, eggs, vanilla) and mix. Then add in the flour and galaxy powder and then scrape the edges to get rid of any bits that have not mixed very well.
  • Cook. Then pour the Galaxy cake batter between two silicone cake pans and cook in the air fryer. This will take approximately 45 minutes depending on the speed of your air fryer. Then take out from the air fryer, allow to cool and then remove the silicone.
  • Ganache. Next make the ganache in the Thermomix. Add the double cream, butter and Easter chocolate and cook on 75c/165f for 5 minutes on speed 2 or until you have a creamy ganache.
  • Assemble. When the cakes are cool add one cake to a cake board, then add a layer of the ganache or some buttercream, then sandwich the other cake on top. Then pour over the ganache.
  • Decorate. Then finish with your leftover chocolates and then when you are done place it into the fridge for an hour to set. Then serve.

Though you can of course mix and match the decorations on your galaxy cake and it can be made with just galaxy chocolate or like us with Easter treats.

More Air Fryer Easter Recipes

air fryer galaxy chocolate cake

Your galaxy themed cake is below, note you can print it out with or without photos, adjust servings, or click between metric and imperial depending on where you are in the world.

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5 from 1 vote

Air Fryer Galaxy Chocolate Cake

The most delicious air fryer galaxy cake with a super addictive galaxy chocolate ganache. Loaded up with leftover Easter chocolate for the best way to enjoy your Galaxy easter egg.
Prep Time: 20 minutes
Cook Time: 45 minutes
Total Time: 1 hour 5 minutes
Servings: 12
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Galaxy Ganache

  • 300 g Galaxy Easter Chocolate
  • 50 g Butter
  • 120 ml Double Cream/Heavy Cream
  • Easter Chocolates, for decorating

Kitchen Gadgets


  • Add the sugar and the butter to the Thermomix and mix on speed 4 for 3 minutes.
    How To Make A Galaxy Themed Cake?
  • Then add in the olive oil, eggs and vanilla. Mix at the same speed for another 2 minutes.
    How To Make A Galaxy Themed Cake?
  • Next scrape the edges for any excess with a silicone spatula and then add the flour and the chocolate powder. Mix on speed 4 for 2 minutes.
    How To Make A Galaxy Themed Cake?
  • Scrape the edges again and add the milk and do a last mix on the same speed for 2 more minutes. Then pour the mixture into 2 silicone pans. Place the pans into the air fryer and air fry for 15 minutes at 170c/340f followed by 25 minutes at 160c/320f so that the middle will cook. Check with a thermometer that it comes out clean and if it doesn’t add an extra 10 minutes at 150c/300f.
    How To Make A Galaxy Themed Cake?
  • Then leave the silicone cake pans to cool and then remove the silicone.
    How To Make A Galaxy Themed Cake?
  • When the cakes are cool make the ganache. Add all the ganache ingredients into the Thermomix and cook at 75c/165f on speed 2 for 5 minutes or until you have a creamy ganache. If too thick adjust with a little extra double cream. Then fridge for an hour and then stir.
    How To Make A Galaxy Themed Cake?
  • Trim the top off the cakes to make them level. Then add a little ganache to a cake board to help keep the cake in place. Add the bottom cake to a cake board, then add a layer of ganache or swap for some buttercream, then sandwich the other cake on top.
    How To Make A Galaxy Themed Cake?
  • Then pour over the ganache and finish with some easter decorations. Fridge for an hour to fully set before slicing.
    How To Make A Galaxy Themed Cake?


Mixture. We used a mixture of different Easter chocolates eggs, but you can do any. Or you can just stick to Galaxy chocolate to keep in with the theme of a galaxy chocolate cake recipe.
Thanks for reading our chocolate galaxy cake on Recipe This. We have many more air fryer recipes for you to check out next. Though if you would like to try more delicious ideas for Easter do try our air fryer lamb steaks.


Calories: 649kcal | Carbohydrates: 82g | Protein: 10g | Fat: 33g | Saturated Fat: 19g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 117mg | Sodium: 127mg | Potassium: 125mg | Fiber: 1g | Sugar: 57g | Vitamin A: 854IU | Vitamin C: 1mg | Calcium: 129mg | Iron: 1mg
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About Sam & Dom

Hi! I am Sam and along with my chef hubby Dom we love sharing with you easy everyday recipes using kitchen gadgets. We are also the authors of The Complete Air Fryer Cookbook, an amazing air fryer cookbook filled with 140+ everyday air fryer recipes.

Beyond the air fryer we also love the instant pot, slow cooker, soup maker, ninja foodi, pie marker and several other kitchen gadgets.

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Recipe Rating


  1. 5 stars
    A great easter recipe, full of chocolate and icing and loving using my air fryer to bake a cake, learning some good things from your website and your newsletter many thanks for all the free info.

    1. Hi Liz,

      No you do not put 2 pans in the air fryer, they will not fit unless it is an air fryer oven which has trays, we have 4 air fryers so can cook 2 at the same time, so if making a double layer cake like this one cook one then the other 🙂