Slow Cooker Chocolate and Mint Aero Bubble Cake

Slow Cooker Chocolate and Mint Aero Bubble Cake

 Slow Cooker Chocolate and Mint Aero Bubble Cake – a delicious chocolate fudge cake baked in the slow cooker with Mint Aero Bubbles! Baking in the slow cooker is so easy. The most popular recipe on my blog. Look in my Slow Cooker archives for loads more slow cooker cakes and bakes!

So it is Good Friday and I am bringing you …..more chocolate! Well it can’t be avoided, this is the time of year for it after all. 🙂

This slow cooker chocolate and mint aero bubble cake is a cake with a difference as it is made in my slow cooker (3.5 litre oval slow cooker).

I decided to make a slow cooker chocolate and Mint Aero Bubble cake quite simply because I wanted to see the Aero Bubbles in a cake!

I have seen Maltesers and similar being used in traybakes (do make the Malteser traybake, it is delicious!) but I wanted these to go in a cake, not a no-bake or brownies. I thought the cake would look great when sliced as you would see the green circles against the dark brown chocolate cake, as well as the bubbly texture of the bubbles against the velvety cake. Well that was the idea anyway!

I saw in the traybake etc recipes that sometimes they froze the Maltesers or Aero bubbles overnight so they didn’t melt when baking. I didn’t have the patience for that so just went for it. Sometimes you just want cake then and there, am I right.

Ready to start baking! The base is lined with baking paper. I would line the sides of the pot too to make it easier to get out!

Slow Cooker Chocolate and Mint Aero Bubble Cake - BakingQueen74

This is what it looked like after 45 mins. The edges are becoming firm and the Aero bubbles are melting! Just look at that rich chocolate colour, mmmmm.

Slow Cooker Chocolate and Mint Aero Bubble Cake - BakingQueen74

Another hour later, after adding more Aero Bubbles in the centre. The cake is starting to firm up.

Slow Cooker Chocolate and Mint Aero Bubble Cake -

Finished, after two and a quarter hours. Yummy, rich and fudgy chocolate cake topped with minty chocolate!

Slow Cooker Chocolate and Mint Aero Bubble Cake

Join all the hundreds of thousands of people who have read my recipe for my slow cooker chocolate and mint Aero bubble cake below!

Slow Cooker Chocolate and Mint Aero Bubble Cake

If you like this recipe, make sure you look at my guide to baking in a slow cooker with loads more slow cooker cakes, desserts and bread recipes! If you have any questions do leave a comment, I reply to as many as I can!

See also my Slow Cooker Archives for loads more slow cooker recipes including family recipes.

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Slow Cooker Mint Aero Bubble Cake

Slow Cooker Chocolate Mint Aero Bubble Cake by BakingQueen74

Slow Cooker Chocolate and Mint Aero Bubble Cake

A delicious rich chocolate cake baked in your slow cooker with added Mint Aero Bubbles
4.5 from 4 votes
Print Pin Rate
Course: Baking
Cuisine: Slow Cooker
Prep Time: 5 minutes
Cook Time: 3 hours
Total Time: 3 hours 5 minutes
Servings: 8
Calories: 411kcal


  • 190 g plain flour
  • 1 tsp baking powder
  • 50 g cocoa powder
  • 200 g light brown sugar
  • 125 g butter
  • 3 eggs
  • 180 ml milk I used semi-skimmed
  • 1 large share bag of Mint Aero Bubbles


  • Grease and line the slow cooker bowl.
  • Mix the flour, baking powder and cocoa powder in a large bowl.
  • Cream the butter with the sugar then add the eggs slowly, mixing after each addition.
  • Add the milk and whisk until smooth.
  • Fold in the flour mixture.
  • Pour the cake batter into the slow cooker bowl.
  • Add about half the Mint Aero Bubbles, scattering them over the top.
  • Put the lid on and turn the slow cooker onto high.
  • Cook for 2-3 hours on high until firm.


Line your slow cooker bowl with baking paper so you can remove the cake in one piece.
Tried this recipe?Tag me @bakingqueen74 or use hashtag #bakingqueen74!



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I am so trying this!


Hiya yes I did it with the skewer. It turned out well anyway. Not all the balls melted into the cake because I added more. It was delish. Thanks for your replies.


I’ve just made the mint aero cake and it looks pretty good, haven’t tasted it yet as its for my work colleagues tonight. The only thing I have a problem with it testing to see if it’s cooked in the middle because of the mint aero balls as obviously they don’t set. So I have a tendency of the sides being over cooked. Any suggestions?


I’ve just made this cake and added orange matchsticks instead and it’s absolutely gorgeous. The best chocolate cake I’ve ever made. Thank you for the recipe.


Hi ive got a round slow cooker instead of oval. My cakes been cooking for 2 hrs and looks cooked at the top but when i put a skewer in its not clean should i take it out and hope it continues to cook the middle?


HI used a 6.5 l with the above recipe and it was really good. Just wondering whether you can get away with baking it for longer on low setting? Thinking it would be good to take skiing and come home to some lovely cake!

Kelly anne meese

When you say 1. Grease and line the slow cooker bowl. Do you use baking sheet/paper to line the bottom and just grease the sides?


Did this last weekend and it was amazing, thanks. I added white aero balls too but was a bit pointless as the mint overpowered the white. I got it in again now but without aero balls instead using cream eggs and topping after with flakes!!!!


Not tried this but have made salted caramel peanut butter cookie dough n used that n omg that’s the most amazing thing ever


p.s….that cake tastes absolutely amazing, I’m so proud of myself, that’s the first cake I’ve baked in years…ty 74…X


hi 74, I’m just baking this now, yay, recipes for my slow cooker, you sure are great….what I’m asking is, I’ve spraed the aero bubbles around but they seem too have all congregated too the centre of the cake, am I doing something wrong….


Just made this and it looks and tastes great, the aero bubbles did melt quite a bit and I forgot about lining it too! Doh! But still tastes great and will be sharing with the family at Sunday dinner tomorrow xx


Hi, this looks lovely. Do you use salted or unsalted butter?x


Could this just be cooked in the oven? what’s special about the slow cooker?


Hi. This looks amazing. But in the photo it doesn’t look like you have lined the pot with anything? Did you just grease it? Thanks.

Jay Stevens

Hi I’m Diabetic but this looks good! What sugar substitute would you suggest please?


Having a go at this right now !!!! It’s been in the slow cooker for just 30 minutes I cannot wait to see how it turns out !!


Hi how many portions do you think this makes ? Many thanks


Looks Incredible! Will definitely be giving this one a go, thanks!



Made one of these tonight and I only seems to have taken 1-45mins for it to go firm is this ok? Put a skewer thought it and it come out clean.