Mega Chocolate Birthday Cake

Prepare to embark on a journey to chocolate heaven with this Mega Chocolate Birthday Cake! This dessert isn’t just any chocolate cake; it’s a towering, decadent masterpiece that will satisfy even the most intense chocolate cravings. Picture layers of rich, moist chocolate sponge, a luscious chocolate filling, and a silky chocolate buttercream frosting, all topped with beautiful buttercream swirls, Milky Way Magic Stars and surrounded by Cadbury Chocolate Fingers. Whether you’re celebrating a special occasion or indulging your sweet tooth just because, this cake promises to steal the show and hearts alike. Perfect for chocoholics, party-goers, or anyone who believes there’s no such thing as too much chocolate, this recipe will walk you through every step to baking success. Ready to wow your guests (or just yourself)?

Mega chocolate birthday cake

I originally made this cake for my 21st Birthday. I had always enjoyed baking but just for fun. Then I made this cake and I was so impressed with how it turned out I realised I might have found my calling! I’ve been writing recipes and selling cakes ever since! I absolutely love chocolate so if there is any cake that sums me up, this is it. I was looking for a really impressive cake for my 21st birthday and so I looked on Pinterest for some inspiration photos. In the end I took elements from different cakes that I liked and merged them into one Mega chocolate birthday cake.

Mega chocolate birthday cake

Of course you can swap out the toppings on this cake to your favourite chocolates. You just need some long chocolates on the outside (think matchmakers or KitKat fingers) and then add whatever you like on top. If you are a Kinder Bueno lover you can try out my Kinder cake which has lots of different Kinder chocolates on top including Kinder Buenos and Happy Hippos.

Mega Chocolate Birthday Cake
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Mega Chocolate Birthday Cake

Difficulty: Medium
Servings

16

servings
Prep time

1

hour 
Cooking time

30

minutes
Total time

1

hour 

30

minutes

The perfect birthday cake for a chocoholic

Ingredients

  • 230g Dark Chocolate

  • 170g Unsalted Butter

  • 350g Light Brown Sugar

  • 3 Eggs

  • 370g Plain Flour

  • 1 1/2 tsp Baking Powder

  • 1 1/2 tsp Bicarbonate of Soda

  • Pinch of Salt

  • 500ml Milk

  • 2 tsp Vanilla Extract

  • Buttercream

  • 170g Dark Chocolate

  • 225g Unsalted Butter

  • 1 tsp Vanilla Extract

  • 250g Icing Sugar

  • 1 tbsp Milk

  • Milky Way Magic Stars

  • Cadbury Chocolate Fingers

Directions

  • Pre heat oven to 190c/170c (fan). Grease and line three 20cm cake tins with greaseproof paper. I used ‘Cake Release’ which is amazing and makes it so easy to get the cake out of the tin later.
  • Break the chocolate into pieces and place in a microwave-safe bowl, melt on a medium setting in 30-second bursts until completly melted, stiring well in between. Alternatively use a bowl over a saucepan. Set the bowl to one side to cool.
  • In a large mixing bowl cream the butter and sugar until it is pale and smooth, which should take 3-5 minutes using a electric hand mixer. Put the egg yolks in a separate bowl and beat for several minutes. Slowly add the egg yolks to the butter mixture and beat well. Add the chocolate to this mix and beat again.
  • Combine the flour, baking powder, bicarbonate of soda and salt in a seperate bowl. Combine the milk and vanilla in a jug. Add one third of the flour to the creamed mix and beat well. Pour in one third of the milk mix and beat again. Repeat these steps until all the flour and milk has been added.
  • In a clean bowl whisk the egg whites until soft peaks start to form. Carefully fold the egg whites in to the batter using a metal spoon, being careful not to beat the air out of the whites. Divide between tins and bake for 30mins.
  • Buttercream
  • Melt the chocolate in a bowl or plastic jug in the microwave until smooth and a thick pouring consistency. A general guide would be to heat at 30 secs intervals on medium, stirring in between, to avoid burning the chocolate. Leave to cool slightly.
  • Beat the butter, sugar, milk and vanilla with an electric hand beater in a bowl until smooth. Add the melted chocolate and beat until thick and creamy. If it's too runny you can beat it or allow it to cool slightly.
  • Put the bottom layer on a cake board and spread about 2 tablespoons of the buttercream onto it. Then add the second layer and do the same before adding the top layer.
  • Cover the sides with buttercream and stick the chocolate fingers all the way round it before it sets.
  • Use a piping bag with a star tip to pipe swirls on the top starting from the middle out. Add the chocolate stars to finish.

Mega chocolate birthday cake pinterest