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Salted caramel chocolate fudge cake - four layers of moist chocolate fudge cake filled with salted caramel swiss meringue buttercream, topped with whipped chocolate ganache and a liberal dose of salted caramel.
This salted caramel chocolate fudge cake is one of the most popular recipes on my site - and for very good reason! It is a bit of a labour of love to bake, but the results are so, so worth it.
Four layers of dark, moist, intensely chocolatey cake filled with salted caramel swiss meringue buttercream and salted caramel sauce, topped with whipped chocolate ganache and a luscious drizzle of extra caramel.
The photos here do not do it justice - when I came to photograph it, it was the most grey, miserable, dark day imaginable, so even right next to the window in the early afternoon there was no light.
It is a very impressive cake which would be perfect for any celebration or birthday. I've had loads of comments from readers who have baked this salted caramel chocolate fudge cake and loved it!
This cake is truly indulgent (don't think about the amount of sugar involved...). I used a dark, not too sweet cake recipe to balance the sweetness of the caramel a little but it is still very rich so serve in small slices.
The cake is quite labour intensive, but the work can be split over two days; the cakes can be baked and the salted caramel made one day and both be refrigerated overnight, then the following day make the swiss meringue buttercream and ganache and assemble the cake.
In fact I recommend that you don't attempt to do it all in one day, the cakes are best refrigerated before you attempt to halve them as they have quite a soft crumb, and the salted caramel needs to be cool before you add it to the buttercream.
And it is so worth the effort! My fiance declared it one of the best tasting cakes I have ever baked...and I have baked A LOT of cake...
I used whipped ganache as I wanted the lighter texture and colour compared to standard ganache - I didn't think that the caramel drizzle would stand out enough on un-whipped ganache, but it isn't a necessary step and the cake would taste just as good if you don't want to bother whipping it.
I made my own salted caramel, and have given the recipe below; it isn't difficult, but if you don't fancy messing about with molten hot sugar (and I don't blame you), you can certainly use store-bought salted caramel sauce instead.
5 from 7 votes
Salted Caramel Chocolate Fudge Cake
Serves 12.
Author Domestic Gothess
Ingredients
Cake
- 225 g (scant 2 cups) plain flour
- 350 g (1 + ¾ cups) caster (superfine) sugar
- 85 g (⅔ cup + 1 tsp) cocoa powder
- 1 ½ tsp baking powder
- 1 ½ tsp bicarbonate of soda (baking soda)
- 2 eggs
- 250 ml (1 cup + 2tsp) buttermilk
- 125 ml (½ cup + 1tsp) vegetable or sunflower oil
- 2 tsp vanilla extract
- 250 ml (1 cup + 2tsp) very hot coffee or boiling water
Salted Caramel
- 300 g (1 ½ cups) caster (superfine) sugar
- 60 ml (¼ cup) water
- 280 ml (1 cup + 3tbsp) double cream
- 30 g (2 tbsp) unsalted butter
- ½ tsp - 1 tbsp sea salt flakes
Swiss Meringue Buttercream
- 200 g (1 cup) caster (superfine) sugar
- 4 large egg whites
- 250 g (1 cup + 1 tbsp) softened unsalted butter
- 1 tsp vanilla extract
- 6 tbsp (or more to taste) salted caramel
Whipped Ganache
- 200 g (7 oz) dark chocolate
- 200 ml (¾ cup + 1tbsp + 1tsp) double cream
Instructions
Bake the cake the day before you want to ice it. Preheat the oven to 180°C/350°F/Gas mark 4. Grease and line two 20cm/8in round tins.
Sift the flour, cocoa powder, baking powder and bicarb of soda together into a large bowl, stir in the sugar. In a separate bowl, whisk together the eggs, buttermilk, oil and vanilla extract, pour into the dry ingredients and beat well until smooth and combined. Add the hot coffee, a little at a time, until it is all combined, the mixture will be very liquid, don't panic! Divide the batter between the tins and place in the centre of the oven, check after 35 minutes - a skewer inserted into the centre should come out clean or with a few moist crumbs, but no wet batter. They could take up to an hour to bake though, mine took 55 minutes, just check every 5-10 minutes after the 35 minute mark.
Once baked, remove to a wire rack, still in their tins, and leave to cool completely. Once cold, wrap the cakes in their tins in clingfilm and place in the fridge overnight, or for at least an hour. It is far easier to slice a cold cake in half neatly.
Make the salted caramel: Place the sugar and water into a deep, heavy-bottomed saucepan, bring to the boil and cook, swirling the pan, NOT stirring, until the sugar dissolves and the colour changes to amber. Remove from the heat and pour the cream - be careful as the caramel will bubble ferociously and rise up in the pan. When the bubbling stops, add the butter and whisk till combined, it may not be completely smooth at this point.
Return the pan to a medium heat and cook at a gentle simmer, whisking the whole time, for a couple of minutes until the caramel is smooth and free of lumps. Whisk in the salt, a little at a time, tasting as you go (CAREFULLY - the caramel is very hot!), until it's at the right level of saltiness for you. Make sure that the salt is actually fully combined, and not just sinking to the bottom, before adding more. Leave the caramel to cool completely, it can be made the day beforehand and stored in the fridge for up to a week.
To make the salted caramel swiss meringue buttercream, put the egg whites and sugar in an extremely clean heatproof bowl (use the bowl of your stand mixer if you have one). Place over a pan of simmering (not boiling) water (do not let the base of the bowl touch the water) and whisk with a hand whisk (not electric) until the sugar has dissolved completely and the mixture is warm to the touch, if you rub some of the mixture between your fingers it should be smooth and you shouldn’t be able to feel any graininess, this will take about five minutes. If you want to get technical about it the mix should reach 60°C/140°F on a thermometer.
Remove the bowl from the heat and attach it to your stand mixer with the whisk attachment or use an electric hand whisk, whisk the egg whites until it forms a thick, glossy, bright white meringue and is completely cool, the bottom of the bowl should feel cool to the touch, this will take about 10 minutes.
Once the meringue is cold, switch the mixer to a low speed and begin to add the butter, a tablespoon at a time, make sure that each addition is fully incorporated before adding the next; the meringue will deflate a little and may begin to look curdled, don’t panic! This is normal, just keep adding the butter gradually and whipping away and it will come back together. If, once all the butter has been added, your mixture is runny, the butter may have been too soft or the meringue still warm, just put the bowl in the fridge for 15 minutes or so then carry on whipping.
If, even after a decent amount of whipping, it still looks curdled, place about 4 tablespoons worth of the mixture in a small bowl and microwave for 10-15 seconds, it should become runny, pour this back into the bowl of buttercream, down the side of the bowl while whisking, continue to whisk for a few minutes and it should come back together. Once the buttercream is completely smooth and silky and all the butter has been incorporated, whisk in the vanilla extract and salted caramel.
Remove the cakes from the fridge and carefully, using a long, sharp serrated knife (like a bread knife) slice each one in half so you have four layers. Place one layer on a serving plate or cake stand and spread over just over a quarter of the buttercream, then drizzle over a tablespoon or two of the salted caramel (you can thin it with a little more cream or warm it VERY slightly until it becomes pourable if needed - I'm talking no more than 10 seconds in the microwave, do not let it become warm or it will melt the buttercream). Top with another layer of cake and repeat until you have three layers of buttercream; place the final layer of cake on top - use one of the bottom halves, upside-down, so that you have a flat top.
Spread the remaining scant quarter of buttercream thinly all over the cake, it does not need to be neat and you will be able to see cake through the buttercream but try to get it fairly smooth and cover the cake evenly; this is your crumb coat - it will stop cake crumbs from getting into your ganache. Place the cake in the fridge for at least fifteen minutes while you make the ganache.
To make the ganache, chop the chocolate and place in a heatproof bowl. Put the cream in a small pan and heat until just simmering, pour it over the chocolate, making sure that it is all covered; leave to stand for 5-10 minutes then stir until smooth. Leave the ganache until it has cooled to room temperature - it should have thickened but still be spoonable, like pudding (you can pop it in the fridge to speed this up). Whisk with an electric whisk until it has lightened in colour and has the texture of thick whipped cream, do not overwhip or you will end up with chocolate butter...which sounds delicious but is not what we want here! Immediately spread the ganache all over the cake - work fairly quickly as it doesn't take long for it to start to set.
To finish, drizzle over the remaining salted caramel.
I am sharing this with Totally Talented Tuesdays, Create Link Inspire, Showcase Your Talent Thursday, Foodie Fridays and Fiesta Friday
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Reader Interactions
Comments
Sarah
Followed the recipe and it didn’t work! The meringue butter cream was too thin didn’t set had to keep whisking. When I added the ganache it all slide off and looked a mess. Will have to buy a shop cake for my sons 18th Birthday tomorrow as this cake looks crap, just hope it taste ok so I can serve it as a sloppy gateaux
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Libby
Hi Sarah, just read your story, so sorry for you and your Son. Let me reassure you Swiss M. Buttercream and Ganache are very had to master. This recipe and technique read very well but these really are about having "the knack". I would say, try them again but I realize the ingredients in both are not cheap, hope you have had heaps of success with other buttercreams and chocolate. Have not made this myself yet, but this weekend I intend to turn this recipe into a CAR, fingers crossed.
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Naomi
I LOVE this recipe. I’ve made it a few times now.
It’s is incredibly light while also indulgent. A beautiful combo of flavours. A real luxury.
I think some techniques are more advanced and feel and troubleshooting may just be unfamiliarity with those techniques.
Bravo! It’s exquisite.Reply
Marta
Just made this cake and it looks amazing can't wait to try !!!! Thank youReply
Louise
Absolutely delicious. Definitely a good idea to start the day before. My husband and son both have requested this cake for their next birthdays!
Reply
Brigitte
I am making this cake at my daughter’s request for her 13th birthday.. I. have just made the cake portion and it didn’t rise... any idea what I did wrong? Both the baking soda and baking powder were brand new...
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hannahhossack
Hi Brigitte, sorry to hear that; there are many reasons why a cake may not have risen but unfortunately without being there when you made it I can't tell what went wrong.
Reply
Jane Hall
Hi, really wanting to make this cake for my hubby's birthday in may, was wondering if i could make it in my 6inch x 3inch deep cake tins, would you be able to calculate the difference in ingredients please, if not that's absolutely fine x
Reply
Hannah
Hi Jane, I think that the recipe would make three thin-ish 6 inch cakes.
Reply
Kim
Absolutely my favourite birthday cake I make myself each year! Can't finf anything else to compare! Thank you for sharing recipe.Reply
Caralee
Lovely cake! I forgot to review before but I made it back in January for my daughters 3rd birthday! It was very moist.
Now planning to make it again today for a family members 50th.
Thank you! 🙂Reply
Madeline
Absolutely delicious! My cakes didn't rise, so I just made 2 more and they're moist and delicious. I am wondering is it possible to freeze this cake?
Thank youReply
Hannah
Hi Madeline, yes it will freeze. Glad you enjoyed it!
Reply
Shani
Delicious! Came out amazing and was a family hit!
Follow the instructions and you can’t go wrongReply
Darren
Great recipe. I would like to swap the oil for butter. How much butter would I need? 150g?Thanks
Reply
Hannah
Hi Darren, I would use 125g melted butter, I recommend sticking with the oil if possible though.
Reply
Phyllis
Loved making it. A bit time consuming but soooo worth it!!Reply
Kathy
Is there a certain percent for the dark chocolate?
Getting ready to attempt this!
Thank youReply
Hannah
Hi Kathy, I use 60-70%
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Lori S
I bake a lot of cakes, and this is one of my top favorites EVER! Always a crowd pleaser. Thanks for all the troubleshooting tips for the swiss meringue - it can be so temperamental!
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Niven
This is the single most disastrous cake I have ever made. I have never posted on a recipe before but I had to tell you about my last couple of days...
I started strong and was happy with how quickly I followed the recipe for the cake part, without messing up the ingredients, I might add. The tins went in the oven and I set the timer. Within a few minutes I could smell burning.. The batter had spilled out of one of the cake tins (the other didn't have a removal base) and onto the bottom of the oven. I thought to myself 'okay. No worries. Just slightly less cake in that one. Just don't open the door till its ready'. But that was only the beginning...
I could see that the cakes were barely rising and had formed a fairly large outer ring on the top, so I knew it wouldn't be a tall cake. By the hour 20 mark of a wet batter I decided that the cakes would finish baking in their tins, surely. They cooled as I got working on the caramel. Easy peasy (minus the lack of rise). In the fridge and off to bed.
This morning as I removed (or attempted) the cakes from the tins I realised that one was still rather wet. I turned the oven back on to preheat it.. I had forgotten about the leaky batter. My house was soon smoked out so that was the end of that plan. Instead I put the other, less familiar, oven on (double oven unit) and within 15 minutes (incl. preheat) I had singed all of the top layer of that cake. It was rescue-able but clear that these cakes would definitely not be cut in half.
Onto the meringue. I do have to caveat this as it was completely my fault for forgetting that my hand mixer had recently been the on the wrong end of another difficult bake, and hadn't survived. Unfortunately I realised this far too late. It had to be done by hand. Jumping between work calls and tirelessly whipping egg whites was not my favourite part of today.. particularly when they didn't thicken. I googled and googled and landed on the idea of using my blender. Which did actually work! (For a brief moment) until, of course, it curdled. So I followed the tips to get it back and kept warming and warming small bits and mixing. I gave up and decided I was just going to assemble it.
This would have been fine. Except curdling meant that there was so much excess liquid in the butter cream. I assembled, disassembled, patted dry and repeated... No good. Eventually I found myself straining the buttercream mixture through a tea towel to get rid of that excess liquid. A nightmare.
After all this time, I'm pushing on. I have now assembled two cakes with the patchy butter/crumb coat. Honestly I'm scared to attempt the chocolate ganache. Maybe it will pull it all together? Wish me luck.
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