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Thick and fudgey Malteser traybake cake with a malt fudge sponge, malt buttercream frosting and Maltesers! 

Traybake cake

It’s been a while since I shared a traybake cake recipe, and all in all, I’ve only ever posted a few on my blog… It’s definitely an underrated type of bake, and I need to rectify my lacking in recipes urgently. 

The last traybake cake I shared was my chocolate cake traybake back in August, and even though it’s been a long old while since then, that cake is still SO popular these days! 

The cake has been so popular because it’s essentially a traybake form of my chocolate fudge cake, and who doesn’t love a traybake cake for a party?!Think about those chocolate traybake cakes you can buy from the supermarket (which are epic), and then multiply the epic-ness by 100. 

Malteser traybake cake

I’m not trying to blow my own trumpet here, but the cake really is epic and utterly DELICIOUS. However, I have had requests and requests for more traybake cakes, just like that one! So… here is the Malteser version. 

Yeah, that’s right, the Malteser version. I am utterly head over heels in love with this beauty, and I can’t stop the love. It’s based on my Malteser cake, and then also the chocolate cake traybake. The morphing of the two, into heaven in a bite. 

Malt everything!

The premise of the bake is essentially the exact same, but just better. I went for a Malt Chocolate sponge, and a Malt Buttercream Frosting because it just tastes sooo good along with the Malteser, and I can’t get enough. 

Malt powder

Whenever in recipes I say “malt powder” I mean Horlicks or Ovaltine – I’m not sure what the equal to these are in other countries like America, but here they are a delicious warming drink that’s kinda like hot chocolate, but not chocolate. If you like Maltesers, I’d be surprised if you didn’t like malt drinks.. but you know, weird things can happen!

The one thing I wouldn’t recommend for the cake or buttercream though is the Malteser hot chocolate as that’s not the best for baking.I’ve tried using the Malteser hot chocolate in bakes a few times, but it’s structure and ingredients are just completely different, and it’s designed to be mixed with water rather than milk so can work out oddly. If you use an actual malt drink such as Horlicks or Ovaltine, you will get a much much better flavour!

Coffee

One thing I will say AGAIN with this fudgey type cake recipe is that the coffee is IMPORTANT. Don’t worry, you can NOT taste the coffee in the cake, but it just enhances the richness of the chocolate in the sponge and takes it to the next level.

Please, for the love of god, don’t take out the coffee. People I know aren’t the biggest coffee drinkers, and some even hate it, but they all say they can’t taste it in the recipe and it is delicious. 

This recipe is wonderful, it is Malteser heaven, and I hope you all love it too! Enjoy! x

Malteser Traybake Cake!

Thick and fudgey Malteser traybake cake with a malt fudge sponge, malt buttercream frosting and Maltesers! 
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Category: Cake
Type: Traybake
Keyword: Maltesers
Prep Time: 15 minutes
Cook Time: 50 minutes
Decorating Time: 20 minutes
Total Time: 1 hour 25 minutes
Servings: 25 Pieces
Author: Jane's Patisserie

Ingredients

Cake Ingredients

  • 250 g dark chocolate
  • 250 g unsalted butter
  • 2 tsp coffee granules
  • 125 g malt powder (Horlicks/Ovaltine)
  • 200 g plain flour
  • 35 g cocoa powder
  • 1.5 tsp baking powder
  • 1/2 tsp bicarbonate of soda
  • 250 g golden caster sugar
  • 250 g light brown sugar
  • 4 medium eggs
  • 100 ml buttermilk

Decoration Ingredients

  • 200 g unsalted butter (room temp)
  • 400 g icing sugar
  • 75 g malt powder (Horlicks/Ovaltine)
  • 2-4 tbsp boiling water
  • 200 g Maltesers

Instructions

For the Cake!

  • Preheat your oven to 160C/140C Fan and line a 9x13" tin with parchment paper.
  • In a heatproof bowl, microwave the dark chocolate and butter until melted - I do mine in 30 second bursts!
  • Add your coffee granules and malt powder to a small bowl, and add in 150ml boiling water. Whisk until smooth!
  • Add this to your chocolate/butter mix and whisk again until smooth.
  • In a large bowl, add your plain flour, cocoa powder, baking powder, bicarbonate of soda, golden caster sugar and light brown sugar and whisk until distributed evenly!
  • Whisk the eggs and buttermilk together until smooth.
  • Add your melted chocolate mix to the bowl, and your egg/buttermilk mix, and fold all the ingredients together till they are combined - I use my hand and a spatula, and not an electric mixer as I don't want the ingredients to over mix.
  • Pour the mixture into the lined tin, and bake in the over for 50-60 minutes, or until baked through.
  • Leave to cool in the tin for 10-15 minutes, and then on a wire rack fully!

For the Decoration!

  • With an electric mixer, beat your butter on it's own for a few minutes so it's lovely and supple.
  • Add in your icing sugar 1/2 at a time and beat for a few minutes!
  • Add in your malt powder, and beat again - if its stiff, add in 1tbsp of boiling water at a time and beat fully each time till its a thick but spreadable and smooth consistency!
  • Spread over the cake with an angled spatula, and then sprinkle over some Maltesers and some crushed Maltesers!

Notes

  • This cake will last for 3-4 days+ at room temperature in a cake box!
  • This Is The Cake Tin I Used 
  • If you don't want to use Malt Powder, up the coffee to 1tbsp, and lower the water to 125ml - and just leave it out of the frosting!
  • The cake can take longer to bake in some ovens if they're not the correct temperature - or if the mixture is over mixed!
  • You can make your own buttermilk by using the same quantity of WHOLE milk, and 2tbsp of Lemon Juice - but I prefer the actual buttermilk you can buy!

ENJOY!

Find my other Millionaires & Malteser Recipes on my Recipes Page!

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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.

67 Comments

  1. Ann on June 23, 2020 at 7:39 pm

    HI Jane I only had Malteser chocolate egg shell & normal caster sugar not golden it seems ok & is cooking atm so fingers crossed it turns out ok.

  2. Sharron on June 8, 2020 at 5:48 pm

    5 stars
    Well, cake is in the oven as we speak. Hopefully it will turn out okay as I’m loving your recipes. This one, for me, is a little bit of chocolate indulgence.
    Most of your Amazon shop items are out of stock so having to compromise.
    Any chance of a Keylime Pie (No bake) pretty please?

    • Jane's Patisserie on June 8, 2020 at 7:36 pm

      Hiya! Ahh yay! I hope you love the cake!! And I do have a classic (baked) key lime pie recipe in my first ebook, so it may be a good while before I do a no-bake pie!! And I know right?! I need my own supplies and they’re all out of stock haha! xx



  3. Carla on March 24, 2020 at 9:41 am

    5 stars
    Wish I could upload a picture, the best cake recipe I have ever used 😍 thank you!!

  4. Cynthia Caton on September 30, 2019 at 12:20 pm

    Hi,
    Would this recipe cook in a 9x9x2inch square tin please ?

    • Jane's Patisserie on September 30, 2019 at 6:47 pm

      Hiya – no it won’t. A 9″ square is only roughly 2/3 of the tin needed, so it definitely won’t work.



  5. Iris on September 23, 2019 at 5:47 pm

    5 stars
    This cake is DELICIOUS, I made it once and will be definitely making it again my whole family loved it! This recipe is amazing thank you so much xx

  6. Lesley Robinson on August 28, 2019 at 6:10 pm

    What level for a gas cooker please?

  7. Kathleen on August 20, 2019 at 5:05 am

    What percent chocolate did you use?

    • Jane's Patisserie on August 20, 2019 at 10:45 am

      I generally use 80% or so, but the minimum you should use is 70%!



  8. Anne on August 6, 2019 at 12:10 pm

    5 stars
    Made this twice now and it’s delicious! Only problem I’m getting is it sinking in the middle! I’m following the recipe to correctly so I’m a lil confused!

    • Jane's Patisserie on August 6, 2019 at 7:41 pm

      99% of the time I believe a cake sinks because the oven door is opened too early, or the cake is taken out too early, which will cause it to sink. x



    • Jo on August 24, 2019 at 9:57 pm

      I found mine had sunk in the middle too. It tastes amazing – and the middle pieces just have thicker frosting but I didn’t open the door until 60min had gone by and a skewer came out clean. I’m not sure what I did wrong?
      Ps thank you for such amazing recipes! Xx



    • Jane's Patisserie on August 25, 2019 at 1:55 pm

      Sometimes cakes can take longer to bake, despite using a skewer. The cake can take longer than 60 minutes as mentioned in the notes depending on your oven! You need to listen to the cake when the skewer is coming out clean, and if its bubbling, put it in for a little longer!



  9. Jen on June 25, 2019 at 5:57 pm

    Hi Jane, I made this last week and IT WAS AMAZING!!!! Please keep posting recipes, i get inspired! xx

  10. Shaz on June 21, 2019 at 11:16 am

    Can I use regular sugar instead of folder caster sugar?l

    • Jane's Patisserie on June 21, 2019 at 9:08 pm

      Do you mean white caster sugar instead of golden caster sugar? If so, yes – but golden caster sugar tastes lovely!



  11. Alice on June 20, 2019 at 3:07 pm

    5 stars
    I had a go at making the cake, texture is more like a brownie than a sponge cake, but it tastes delicious. Should the cake be quite moist in the middle, or have I not cooked it for long enough?

    • Jane's Patisserie on June 20, 2019 at 7:17 pm

      It’s a Fudgey cake and not designed to be like a regular Victoria sponge – but it may be slightly under baked.



  12. Sharon on June 15, 2019 at 2:34 pm

    Jane have you got a cookery book out as your recipes are AMAZING 😊

  13. Sian Adger on June 15, 2019 at 12:04 pm

    5 stars
    Looks delicious, I love all of your bakes. I shall definitely be making this one!

  14. Jude on June 15, 2019 at 11:44 am

    Hi Jane,
    Can I just ask, does it definitely need half a kilogram of sugar in the cake ? It just seems like an awful lot !
    Would it be possible to just use 250g of either golden caster or soft brown Sugar ?
    Thanks

    • Jane's Patisserie on June 15, 2019 at 12:25 pm

      For the recipe to turn out correctly, the sugar is important – the cake easily serves 20, so it’s really not that much per person at all.



    • Lomastha on June 3, 2020 at 9:53 pm

      4 stars
      I have made this cake using 350g sugar and it turned out perfectly. Lovely recipe.



  15. Andrea on June 15, 2019 at 9:59 am

    Is it ok to use milk chocolate instead of dark?

    • Jane's Patisserie on June 15, 2019 at 12:26 pm

      No, PLEASE use dark – the sponge will not be the same with milk chocolate.



    • Charly on January 16, 2021 at 2:07 pm

      5 stars
      Hi Jane, which malt powder did you use for this recipe and the frosting, Horlicks or Ovaltine? Thank you 🙂



    • Jane's Patisserie on January 16, 2021 at 5:38 pm

      You can use either, but try and use the ‘one for milk’ not the one for water x



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