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 Recipe Index 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!
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.
Another hour later, after adding more Aero Bubbles in the centre. The cake is starting to firm up.
Finished, after two and a quarter hours. Yummy, rich and fudgy chocolate cake topped with minty chocolate!
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A delicious rich chocolate cake baked in your slow cooker with added Mint Aero Bubbles
- 190 g (1.5 cups) plain flour
- 1 tsp *baking powder
- 50 g (1/3 of a cup plus 2 tablespoons) cocoa powder
- 200 g (3/4 of a cup plus 2 tablespoons) light brown sugar
- 125 g (half a cup plus 1 tablespoon) butter
- 3 eggs
- 180 ml milk I used semi-skimmed
- 1 large share bag of Mint Aero Bubbles
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Grease and line the slow cooker bowl.
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Mix the flour, baking powder and cocoa powder in a large bowl.
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Cream the butter with the sugar then add the eggs slowly, mixing after each addition.
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Add the milk and whisk until smooth.
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Fold in the flour mixture.
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Pour the cake batter into the slow cooker bowl.
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Add about half the Mint Aero Bubbles, scattering them over the top.
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Put the lid on and turn the slow cooker onto high.
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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.
If you like this recipe, you might also like these slow cooker recipes:
See also my Recipe Index for all the recipes organised in categories (slow cooker, cake, bread etc).
That looks very fudgy, I can imagine it’s the kind of cake that clings to the top of your mouth, yum! Thanks for linking up to Sweet and Savoury Sunday, stop by and link up again. Have a great weekend!!
Thanks for visiting Laura, I will be back this week!
A note for myself – as we are dairy free will use Raspberry Ruffle bars chopped up and Pure soya spread in place of butter and goat milk
Thanx for this tip. We are also dairy free and had no idea that raspberry ruffles were dairy free.x
Sounds great Pat, I hope it works out well for you dairy free!
Hi, I’m just wondering what you line the slow cooker with in step 1? I’ve never done a cake in it before. This recipe looks lovely. Thanks
If you grease your slow cooker with butter then dust all over that with flour, it saves the need for greaseproof paper. 🙂
good tip. easier to get out with greaseproof though, it gives you something to pull on!
Hi Helen, I use grease proof paper to line the base, and grease the sides. I find it helps when removing the cake. Let me know how you get on, glad you like the recipe!
i didnt think you could use a slow cooker unless it had water in it, is itsafe to use without liquid mine says to make sure it doesnt boil dry ?
I’ve just made it for the first time. a flat warming cake for our grandson who is leaving home tomorrow. It looks really good, can’t wait to taste it! One thing though, I stopped it with still 20 mins to go because it smelt like it may be burning. One side seems to be solid rock on the bottom but the other side feels ok. Fingers crossed!!
Hi Jeanette, mine have always worked fine, one is a Crockpot which can be used dry. You could always use a metal or silicone cake pan and put some water under it if you are worried about your slow cooker cracking. Good luck!
Made it for the first time today and it was delicious! Not stodgy and not too sweet! Thanks for the recipe. I was suprised by how much it rose and I had the lid off a few times to check it was cooked.
Glad you liked it Alison, thanks for visiting!
Just put mine in now for Crochet group they enjoyed the giant cookie last time.
Great Donna, hope you all enjoy it!
Great idea, did this today cooking times vary slightly mine took just over 3 hrs but is amazing !!! Thanks for the idea will be keep this for another time
Great, glad you liked it Sam!
Hi. Have cooked this for about 2 hrs 20 mins. All the top has holes in. How did you get the cake out of the slow cooker, did you leave it to cool first ??
Hi Tracey, I let it cool for a few mins then used the grease proof paper to pull it out. Then left on a rack to cool fully. Hope that helps!
Hi I use this recipe to make malteser cake or galaxy counters cake but I use a large cake case in the slow cooker to save all the messing lol thanks for sharing xx
Wow this looks amazing. Have just pinned it #recipeoftheweek
Oh my goodness, this looks lovely. I never knew you could do cake in a slow cooker, must try it
Looks lovely. I’ve got a large slow cooker so I’m wondering if I could put the cake in a regular cake tin inside the cooker? If so would you need to put water in the base of the cooker around the cake tin?
Many thanks 🙂
Hi Susan, yes some people use a normal cake tin on top of an upturned saucer or similar, with a little water in the base of the pot. Good luck and let me know how it turns out!
Great, thanks 🙂
I’m interested in using a normal cake tin. How much water would u put in? Should the water touch the cake tin if it is sitting on a saucer or only as far up as the saucer? This looks lovely by the way!!!!
I would put an inch or so in and just keep an eye that it doesn’t boil off (I doubt this would happen though). Good luck! 🙂
First – this cake looks fantastic !!
And second – I’ve never baked a cake in a slow cooker and I’m intrigued 🙂
Hi, Just a quick (possibly quite blonde question); you say to grease and line the bowl of the slow cooker but in the pictures it doesn’t look like you did that? I assume you mean use grease-proof paper to cover the bottom and the sides of the bowl otherwise it wouldn’t come out? Is that right?
I’m not the biggest fan of mint aero, but want to try out making the cake in the slow cooker for sure! Thinking of other things I could exchange the aero for! Thanks, Amy
Try orange aero bar broken up .it tastes great
Hi Amy, yes I did butter the inside of the bowl and line it around the bottom and sides with grease proof paper (cut to shape so it fit snugly). You could also use a large cake case (get them in poundshops). Other things you can use are mars bars, maltesers, fudge pieces, choc buttons etc etc. enjoy!
Many Thanks! Looking forward to trying it!
I have a 6.5l s.c would I just double up the recipe and time or would that not work. Ive never done a cake in s.c before so thanks for any tips x
Hi Becki, you could double up the amounts but it would still normally take 1-2 hours approx on high. Or you could do it in a cake tin inside your s.c. if you want a nicer shape (not so flat, and round). Good luck!
This recipe looks and sounds absolutely AMAZING!!
I WILL be making this very soon 🙂
What if before tipping the mixture into the slow cooker if i stirred in some of the bubbles? Do you think that’d just automatically melt the bubbles?
Also coating the bubbles after freezing means that they don’t all sink to the bottom… Also good advice for fruit in cakes 🙂
Great recipe!!! Love my s/c
Hi Laura, if you freeze them first it might work! The only way to find out is to try it, let me know how you get on! 🙂
do you use a tea towel under the lid to absorb the condensation for this cake, thanks in advance.
Hi, I didn’t for this cake as I remember but do use one if you prefer, I find the tea towel helps it to cook quicker too.
thank you very much ☺
oh my god! The only thing wrong with this recipe is IT TAKES SO LONG!!!!! I just can’t wait that long! Going to try it though x
I’ve done carrot cake in my slow cooker which turned out lovely so keen to try this one. never done any sort of chocolate cake what cocoa powder do you use please
Hi Becky, I use whatever cocoa powder I have in ie supermarket own, Bournville, Green and Blacks.
Hi, I just wondered how long the finished cake keeps please. And does it freeze well?
Looking forward to trying it – might try with Aero Orange Bubbles too 🙂
Hi there, mine didn’t keep for long as we scoffed it! It would last same time as a usual cake I’d say, so two to three days in a tupperware box or tin. I’m not sure about freezing I’m afraid as I haven’t tried it. Ooh yes, it would look nice with Orange bubbles! Good luck!
Found mine was still quite soggy in the middle
Hi Jo, I’d cook it for a little longer until no longer soggy. On low if it has started to look like burning, and with a tea towel under the lid to absorb the condensation.
Hi. Im concerned that the greaseproof paper will catch fire. Do u put it on the bottom of the cooker? On top of margarine or just a layer of papee? X
Hi Michelle, it won’t catch fire,it is under a moist cake mixture. I greased the pot first with butter, and normally use baking paper which can go in the oven. Good luck with your cake if you try it!
Would the malteezer cake be too crunchy inside ?? I was thinking of trying it today
Hi Fiona, they will melt and won’t stay crunchy, though I’ve not tried it myself. Enjoy!
can you just use self raising flour instead of buying plain flour and baking powder? thanks
Hi Sam, yes, that would work too.
I only have a rice cooker, will it work in that?
Sorry, no idea!
My aeros bubbles all melted I cooked it for 2 hours 10 mins why did they all melt ? Tastes nice though.
Hi, I guess it was just too hot, did you freeze them first? The slow cooker I used for this cooks quite slowly so mine stayed whole luckily
I used aero bars (they were on offer) and it was gorgeous. We had it warm with ice cream 🙂 thank you great recipe
Great, glad you enjoyed it!
Have attempted this today. My house smells amazing only thing is my bubbles have all melted (and some crystallized) and the cake looks like it has little green craters all over it. Otherwise I am impressed as never cooked any cake in slowcooker before
This looks amazing, I’m going to try it tomorrow. I honestly didn’t know you could make cakes in the slow cooker! Thanks for enlightening me.
Hey all could u use Maltesers instead of the aero bubbles ? Xx
Sure, chuck them in! Enjoy
I can’t wait to try this recipe. Love my slow cooker even more learning I can bake in it! Can you tell me if it’s possible to bake a Christmas Cake this way?
I haven’t tried it yet, but if you come over to the Facebook group Slow cooked wonders, some people have so you can get some tips!
Thank you. I will definitely visit the Facebook Page
Made this today.
This was my first attempt at a cake in the slow cooker so wasn’t sure what to expect but OMG IT IS AMAZING!!!!
Looks nothing like the picture as my bubbles melted but it sure tastes as good as the above picture looks.
I will be trying again.
Great, glad,you enjoyed,it!
Hi, this cake looks great and I want to try it this weekend for a bake off at work! My slow cooker is 6.5l, so should I double mixture or leave it as the recipe states?
Hiya, it makes a big cake so I wouldn’t double it but put a cake tin in your sc and then you will get a round cake which looks better (for the bake off!).good luck!
Great thank you, I will give it a go!
OMG I love cake – defo gonna try this maybe with different choc though – my slow cooker quite new and doesn’t need water but did you cook on high or low? X
Hi Heather, on high, they normally take about 1-2 hours. Good luck!
I baked mine in a loaf tin with a drop of water in the bottom of the slow cooker. It was delicious and was very easy to slice because of its shape and depth
Great, sounds good Brenda!
seen this earlier and have been out for the ingredients already it looks too delicious to not make it right now! haha
Excellent Lauren! Was it good? 🙂
It’s delicious….Made one before Christmas and now things have quietened down a bit – I’m going to make another this weekend.
Glad you liked it!
Has anyone converted this recipe to imperial measurements?
Hi Kim, not that I know of, but I will convert and add them to the post.
Oh my gosh that’s awesome! Thank you very much
will do it asap! No problem 🙂
Hi
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.
Thanks
Tony
Hi Tony, yes that is fine, all slow cookers cook differently, in fact the one I used to make this cake does cook quite slowly. Enjoy!
Looks Incredible! Will definitely be giving this one a go, thanks!
Great, enjoy it!
Hi how many portions do you think this makes ? Many thanks
Really depends on your portion size! but I’d say at least six, it is quite rich.
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 !!
was it good?
Hi I’m Diabetic but this looks good! What sugar substitute would you suggest please?
Hi Jay, i dont know anything about diabetic substitutes so can’t help there.
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.
Hi, I lined it with baking paper on the base and a little on the sides. Best to line it or you won’t find it easy to get it out when cooked without breaking it!
Could this just be cooked in the oven? what’s special about the slow cooker?
Hi Rob, the cake could of course, I have done it several time successfully, but the Aero bubbles wouldn’t stand up to being baked in the cake. I like baking in the slow cooker, that is all! 🙂
Out of interest what would the cooking times and temperature be in the oven? I still may use the slow cooker tho! 🙂
About 25 mins at 180 in a fan oven, based on splitting it in two sandwich tins.
Hi, this looks lovely. Do you use salted or unsalted butter?x
Hi Hayley, I always use unsalted in cakes.
Thank you, I did think so but like to double check. X
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 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….
Hi, no that is normal as the cake rises as it bakes, just put some more on! Hope it turned out well