Double choc fudge cake with white chocolate buttercream recipe

(1590 ratings)

This double chocolate cake recipe is perfect as a birthday cake, party cake or afternoon tea. Find this and other chocolate cake recipes at

Total Time50 mins (plus cooling time)

This double chocolate fudge cake is one of our favourites. Unlike our classic chocolate cake, this bake is smothered white chocolate buttercream and chocolate curls. Take indulgence to another level with this double chocolate cake recipe. It's perfect as a birthday cake, party cake or simply afternoon tea. This recipe serves 8 people and will take around 50 mins to bake and make, plus cooling time. It's a delicious cake recipe that once you've made, you'll want to make over and over again for special occasions.


For the cake:

  • 150g unsalted butter, at room temperature
  • 150g light muscovado sugar
  • 40g cocoa, sifted
  • 150g self raising flour
  • 1tsp baking powder
  • ½tsp bicarbonate of soda
  • 2 medium free range eggs
  • 1tsp vanilla extract
  • 142ml soured cream
  • 2tbsp golden syrup

For the buttercream:

  • 200g white chocolate
  • 280g unsalted butter
  • 280g icing sugar
  • 1tsp vanilla extract

For the chocolate curls:

  • 100g white chocolate
  • 100g dark chocolate




  1. To make this chocolate cake, heat the oven to 180C/mark 4/ Fan 160C. Grease and base-line 2 x 18cm sandwich tins. Beat together the butter and sugar until pale. In a separate bowl sift the cocoa, flour, baking powder, bicarbonate of soda and a pinch of salt, mix well. Add to the creamed butter and sugar.
  2. In a measuring jug whisk together the eggs, vanilla extract, soured cream and syrup. Pour over the dry ingredients and beat altogether.
  3. Divide the mixture equally between the tins. Bake in the oven for 20-25 minutes until springy. Leave to cool for a few minutes in the tins, then transfer to cooling racks to cool completely.
  4. For the buttercream, melt the chocolate in a heatproof bowl over a pan of barely simmering water. Leave to cool slightly. In a large bowl, beat the butter and icing sugar together until creamy. Beat in the chocolate and vanilla extract.
  5. For the chocolate curls, melt the white and dark chocolates separately as above, then pour each on to a small plate, leave to cool until firm but no completely solid, then using a peeler or sharp knife, run the blade over the chocolate to make a curl, transfer to a lined plate and chill in the fridge until ready to serve.
  6. When you’re ready to serve, transfer one of the cakes to a serving platter, spread ¼ of the buttercream on top, then top with the other cake. Then use the remaining buttercream to ice the top and sides of the cake. Top with the chocolate curls.    
Top Tip for making Double choc fudge cake with white chocolate buttercream

Store your cake in an airtight container in the fridge to keep it fresh for longer

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